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Algebra

Each subtopic includes About section, revision page link, 10 preview questions, and practice CTAs.

Expanding and factorizing algebraic expressions, including quadratic expressions

Subtopic

Expanding and factorizing algebraic expressions, including quadratic expressions under Algebra for Grade 9 IB.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    Factorize the trinomial x2+13x+42x^2 + 13x + 42.

    A.

    (x+1)(x+42)(x + 1)(x + 42)

    B.

    (x+2)(x+21)(x + 2)(x + 21)

    C.

    (x+6)(x+7)(x + 6)(x + 7)

    D.

    (x+3)(x+14)(x + 3)(x + 14)

  2. 2.

    Expand and simplify (x−6)(x−2)(x - 6)(x - 2).

    A.

    x2+8x+12x^2 + 8x + 12

    B.

    x2−8x+12x^2 - 8x + 12

    C.

    x2−8x−12x^2 - 8x - 12

    D.

    x2−4x+12x^2 - 4x + 12

  3. 3.

    Factorize 16x2−2516x^2 - 25.

    A.

    (4x−5)2(4x - 5)^2

    B.

    (8x−5)(8x+5)(8x - 5)(8x + 5)

    C.

    (4x−5)(4x+5)(4x - 5)(4x + 5)

    D.

    (16x−25)(x+1)(16x - 25)(x + 1)

Download the worksheet for Algebra - Expanding and factorizing algebraic expressions, including quadratic expressions to practice offline. It includes additional chapter-level practice questions.

Solving linear equations and inequalities

Subtopic

Solving linear equations and inequalities under Algebra for Grade 9 IB.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    Solve the inequality 3x+1≤103x + 1 \leq 10.

    A.

    x≤9x \leq 9

    B.

    x≤3x \leq 3

    C.

    x≥3x \geq 3

    D.

    x<3x < 3

  2. 2.

    Solve for xx: x−4=2\frac{x}{-4} = 2

    A.

    x=−8x = -8

    B.

    x=8x = 8

    C.

    x=−2x = -2

    D.

    x=−6x = -6

  3. 3.

    What is the value of xx in the equation 9x=09x = 0?

    A.

    x=9x = 9

    B.

    x=−9x = -9

    C.

    x=1x = 1

    D.

    x=0x = 0

Download the worksheet for Algebra - Solving linear equations and inequalities to practice offline. It includes additional chapter-level practice questions.

Solving systems of linear equations simultaneously

Subtopic

Solving systems of linear equations simultaneously under Algebra for Grade 9 IB.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    What is the solution to 2x+2y=102x + 2y = 10 and x−y=1x - y = 1?

    A.

    (3,2)(3, 2)

    B.

    (2,3)(2, 3)

    C.

    (4,1)(4, 1)

    D.

    (1,4)(1, 4)

  2. 2.

    Solve the system: 3x+y=73x + y = 7 and x−y=1x - y = 1.

    A.

    (1,0)(1, 0)

    B.

    (3,−2)(3, -2)

    C.

    (2,1)(2, 1)

    D.

    (0,7)(0, 7)

  3. 3.

    If the sum of two variables is 1313 and their difference is 11, find the variables.

    A.

    66 and 77

    B.

    88 and 55

    C.

    77 and 66

    D.

    99 and 44

Download the worksheet for Algebra - Solving systems of linear equations simultaneously to practice offline. It includes additional chapter-level practice questions.

Functions: domain, range, and notation

Subtopic

Functions: domain, range, and notation under Algebra for Grade 9 IB.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    Evaluate f(1)f(1) for the function f(x)=(x+1)3f(x) = (x + 1)^3.

    A.

    2

    B.

    4

    C.

    8

    D.

    1

  2. 2.

    What is the xx-intercept of the function f(x)=10−2xf(x) = 10 - 2x?

    A.

    (5,0)(5, 0)

    B.

    (0,5)(0, 5)

    C.

    (10,0)(10, 0)

    D.

    (0,10)(0, 10)

  3. 3.

    Find the yy-intercept of the quadratic function g(x)=2x2+5xg(x) = 2x^2 + 5x.

    A.

    2

    B.

    5

    C.

    0

    D.

    None

Download the worksheet for Algebra - Functions: domain, range, and notation to practice offline. It includes additional chapter-level practice questions.

Graphing linear and quadratic functions

Subtopic

Graphing linear and quadratic functions under Algebra for Grade 9 IB.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    Which point lies on the graph of y=x2−1y = x^2 - 1?

    A.

    (1, 0)

    B.

    (0, 1)

    C.

    (1, 1)

    D.

    (2, 2)

  2. 2.

    In the standard form of a quadratic y=ax2+bx+cy = ax^2 + bx + c, the value of cc represents the:

    A.

    xx-intercept

    B.

    yy-intercept

    C.

    Gradient

    D.

    Axis of symmetry

  3. 3.

    Find the yy-intercept of y=x2+3xy = x^2 + 3x.

    A.

    3

    B.

    0

    C.

    1

    D.

    -3

Download the worksheet for Algebra - Graphing linear and quadratic functions to practice offline. It includes additional chapter-level practice questions.

Solving quadratic equations by factoring and using the quadratic formula

Subtopic

Solving quadratic equations by factoring and using the quadratic formula under Algebra for Grade 9 IB.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    Solve for xx: 2x−10=02x - 10 = 0.

    A.

    x=−5x = -5

    B.

    x=2x = 2

    C.

    x=10x = 10

    D.

    x=5x = 5

  2. 2.

    Find xx if x2=1x^2 = 1.

    A.

    x=1x = 1 or x=−1x = -1

    B.

    x=0x = 0

    C.

    x=1x = 1

    D.

    x=−1x = -1

  3. 3.

    Solve the system: x+y=8x + y = 8 and x−y=8x - y = 8.

    A.

    x=8,y=0x = 8, y = 0

    B.

    x=0,y=8x = 0, y = 8

    C.

    x=4,y=4x = 4, y = 4

    D.

    x=16,y=−8x = 16, y = -8

Download the worksheet for Algebra - Solving quadratic equations by factoring and using the quadratic formula to practice offline. It includes additional chapter-level practice questions.

Changing the subject of an equation

Subtopic

Changing the subject of an equation under Algebra for Grade 9 IB.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    Solve for xx in y=3(x−2)y = 3(x - 2).

    A.

    x=y3+2x = \frac{y}{3} + 2

    B.

    x=y+23x = \frac{y + 2}{3}

    C.

    x=3y+2x = 3y + 2

    D.

    x=y−63x = \frac{y - 6}{3}

  2. 2.

    Rearrange p=wap = \frac{w}{a} to make ww the subject.

    A.

    w=paw = \frac{p}{a}

    B.

    w=paw = pa

    C.

    w=p+aw = p + a

    D.

    w=apw = \frac{a}{p}

  3. 3.

    Make yy the subject of x=12−yx = 12 - y.

    A.

    y=x+12y = x + 12

    B.

    y=x−12y = x - 12

    C.

    y=12−xy = 12 - x

    D.

    y=−12−xy = -12 - x

Download the worksheet for Algebra - Changing the subject of an equation to practice offline. It includes additional chapter-level practice questions.

Mappings

Subtopic

Mappings under Algebra for Grade 9 IB.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    What is the image of −1-1 under the mapping f(x)=5x+5f(x) = 5x + 5?

    A.

    10

    B.

    0

    C.

    -10

    D.

    5

  2. 2.

    Which of these values is in the range of f(x)=2xf(x) = 2x for domain {1,2,3}\{1, 2, 3\}?

    A.

    1

    B.

    3

    C.

    4

    D.

    5

  3. 3.

    If f(x)=x2−xf(x) = x^2 - x, find f(2)f(2).

    A.

    4

    B.

    0

    C.

    2

    D.

    6

Download the worksheet for Algebra - Mappings to practice offline. It includes additional chapter-level practice questions.

Algorithms

Subtopic

Algorithms under Algebra for Grade 9 IB.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    Solve for xx: 0.5x=100.5x = 10.

    A.

    5

    B.

    20

    C.

    15

    D.

    10.5

  2. 2.

    If 3x=213x = 21, find the value of x+5x + 5.

    A.

    7

    B.

    12

    C.

    26

    D.

    2

  3. 3.

    Simplify the expression 3(x+y)−2x3(x + y) - 2x.

    A.

    x+3yx + 3y

    B.

    5x+3y5x + 3y

    C.

    x+yx + y

    D.

    3x+3y3x + 3y

Download the worksheet for Algebra - Algorithms to practice offline. It includes additional chapter-level practice questions.

Parallel and perpendicular lines

Subtopic

Parallel and perpendicular lines under Algebra for Grade 9 IB.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    If line AA has gradient m=−16m = -\frac{1}{6} and line BB is parallel to AA, what is the gradient of BB?

    A.

    66

    B.

    −6-6

    C.

    16\frac{1}{6}

    D.

    −16-\frac{1}{6}

  2. 2.

    Which gradient is perpendicular to a gradient of 1.251.25?

    A.

    −1.25-1.25

    B.

    0.80.8

    C.

    −0.8-0.8

    D.

    1.251.25

  3. 3.

    If a line is perpendicular to y=−xy = -x, its gradient must be:

    A.

    00

    B.

    11

    C.

    −1-1

    D.

    Undefined

Download the worksheet for Algebra - Parallel and perpendicular lines to practice offline. It includes additional chapter-level practice questions.

Arithmetic and geometric sequences and series-extended

Subtopic

Arithmetic and geometric sequences and series-extended under Algebra for Grade 9 IB.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    Which of these is the correct formula for the sum of the first nn terms of a geometric series?

    A.

    Sn=u1(rn−1)r−1S_n = \frac{u_1(r^n - 1)}{r - 1}

    B.

    Sn=n2(2u1+d)S_n = \frac{n}{2}(2u_1 + d)

    C.

    Sn=u1+rn−1S_n = u_1 + r^{n-1}

    D.

    Sn=u1+(n−1)dS_n = u_1 + (n-1)d

  2. 2.

    What is the 20th20^{th} term of an arithmetic sequence where u1=5u_1 = 5 and d=0d = 0?

    A.

    00

    B.

    55

    C.

    2020

    D.

    2525

  3. 3.

    Find the 3rd3^{rd} term of the geometric sequence 1,12,…1, \frac{1}{2}, \dots.

    A.

    13\frac{1}{3}

    B.

    14\frac{1}{4}

    C.

    16\frac{1}{6}

    D.

    00

Download the worksheet for Algebra - Arithmetic and geometric sequences and series-extended to practice offline. It includes additional chapter-level practice questions.

Binomial theorem (introduction)

Subtopic

Binomial theorem (introduction) under Algebra for Grade 9 IB.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    How many terms are there in the expansion of (x+y)0(x + y)^{0}?

    A.

    00

    B.

    11

    C.

    22

    D.

    Undefined

  2. 2.

    What is the coefficient of the a4a^{4} term in the expansion of (a+b)4(a + b)^{4}?

    A.

    11

    B.

    44

    C.

    66

    D.

    1212

  3. 3.

    Calculate the sum (20)+(21)+(22)\binom{2}{0} + \binom{2}{1} + \binom{2}{2}.

    A.

    22

    B.

    33

    C.

    44

    D.

    55

Download the worksheet for Algebra - Binomial theorem (introduction) to practice offline. It includes additional chapter-level practice questions.

Representation and shape of more complex functions-extended

Subtopic

Representation and shape of more complex functions-extended under Algebra for Grade 9 IB.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    If y=x2+ky = x^2 + k passes through (1,5)(1, 5), what is the value of kk?

    A.

    4

    B.

    5

    C.

    6

    D.

    1

  2. 2.

    Which function is not defined at x=0x = 0?

    A.

    y=x2y = x^2

    B.

    y=2xy = 2^x

    C.

    y=3xy = \frac{3}{x}

    D.

    y=x3y = x^3

  3. 3.

    Where is the vertex of the function f(x)=(x+4)2−1f(x) = (x + 4)^2 - 1?

    A.

    (4, -1)

    B.

    (-4, 1)

    C.

    (-4, -1)

    D.

    (4, 1)

Download the worksheet for Algebra - Representation and shape of more complex functions-extended to practice offline. It includes additional chapter-level practice questions.

Transformation of quadratic functions-extended

Subtopic

Transformation of quadratic functions-extended under Algebra for Grade 9 IB.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    If f(x)=x2f(x) = x^2 is translated 2 units left and 5 units down, what is the resulting equation?

    A.

    f(x)=(x+2)2−5f(x) = (x + 2)^2 - 5

    B.

    f(x)=(x−2)2−5f(x) = (x - 2)^2 - 5

    C.

    f(x)=(x+2)2+5f(x) = (x + 2)^2 + 5

    D.

    f(x)=(x−2)2+5f(x) = (x - 2)^2 + 5

  2. 2.

    What is the vertex of the function f(x)=−(x+4)2−9f(x) = -(x + 4)^2 - 9?

    A.

    (4, 9)

    B.

    (-4, 9)

    C.

    (4, -9)

    D.

    (-4, -9)

  3. 3.

    Which direction does the vertex move if we change f(x)=x2f(x) = x^2 to f(x)=(x−10)2f(x) = (x - 10)^2?

    A.

    Left

    B.

    Right

    C.

    Up

    D.

    Down

Download the worksheet for Algebra - Transformation of quadratic functions-extended to practice offline. It includes additional chapter-level practice questions.

Rational functions-extended

Subtopic

Rational functions-extended under Algebra for Grade 9 IB.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    Simplify 2(x−3)6(x−3)\frac{2(x-3)}{6(x-3)} for x≠3x \neq 3.

    A.

    13\frac{1}{3}

    B.

    3

    C.

    2

    D.

    14\frac{1}{4}

  2. 2.

    Evaluate 1x−1\frac{1}{x} - 1 for x=0.25x = 0.25.

    A.

    3

    B.

    4

    C.

    0

    D.

    1

  3. 3.

    Find the domain of f(x)=xx2+1f(x) = \frac{x}{x^2 + 1}.

    A.

    x≠1x \neq 1

    B.

    x≠−1x \neq -1

    C.

    All real numbers

    D.

    x > 0

Download the worksheet for Algebra - Rational functions-extended to practice offline. It includes additional chapter-level practice questions.

Graphing trigonometric functions-extended

Subtopic

Graphing trigonometric functions-extended under Algebra for Grade 9 IB.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    What is the amplitude of the function y=sin⁡(x)y = \sin(x)?

    A.

    0

    B.

    1

    C.

    2

    D.

    360

  2. 2.

    What is the period of y=sin⁡(360x)y = \sin(360x) in degrees?

    A.

    360∘360^{\circ}

    B.

    1∘1^{\circ}

    C.

    180∘180^{\circ}

    D.

    90∘90^{\circ}

  3. 3.

    Which direction is the graph of y=sin⁡(x)−7y = \sin(x) - 7 shifted compared to y=sin⁡(x)y = \sin(x)?

    A.

    Up

    B.

    Down

    C.

    Left

    D.

    Right

Download the worksheet for Algebra - Graphing trigonometric functions-extended to practice offline. It includes additional chapter-level practice questions.

Linear programming, including inequalities-extended

Subtopic

Linear programming, including inequalities-extended under Algebra for Grade 9 IB.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    Identify the integer solution for xx in 4<x<64 < x < 6.

    A.

    4

    B.

    5

    C.

    6

    D.

    None

  2. 2.

    Which inequality represents "xx is at most 12 and at least 5"?

    A.

    5<x<125 < x < 12

    B.

    5≤x≤125 \le x \le 12

    C.

    5≤x<125 \le x < 12

    D.

    5<x≤125 < x \le 12

  3. 3.

    Solve 0.5x≤40.5x \le 4.

    A.

    x≤2x \le 2

    B.

    x≤8x \le 8

    C.

    x≥8x \ge 8

    D.

    x≤4.5x \le 4.5

Download the worksheet for Algebra - Linear programming, including inequalities-extended to practice offline. It includes additional chapter-level practice questions.

Networks: edges, arcs, nodes, and paths-extended

Subtopic

Networks: edges, arcs, nodes, and paths-extended under Algebra for Grade 9 IB.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    How many edges are in a complete graph with 5 vertices (K5K_5)?

    A.

    5

    B.

    10

    C.

    15

    D.

    20

  2. 2.

    In a network, the 'distance' between two nodes is defined as:

    A.

    The total number of nodes in the graph

    B.

    The length of the shortest path between them

    C.

    The sum of the degrees of the two nodes

    D.

    The number of cycles between them

  3. 3.

    A graph that can be drawn in a plane such that no edges cross each other is called:

    A.

    Planar

    B.

    Simple

    C.

    Complete

    D.

    Directed

Download the worksheet for Algebra - Networks: edges, arcs, nodes, and paths-extended to practice offline. It includes additional chapter-level practice questions.

Calculating network pathways-extended

Subtopic

Calculating network pathways-extended under Algebra for Grade 9 IB.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    There are 4 paths from AA to BB and 5 paths from BB to CC. How many total paths are there from AA to CC?

    A.

    9

    B.

    20

    C.

    16

    D.

    25

  2. 2.

    In a 1×61 \times 6 grid, how many paths exist from the top-left to the bottom-right corner?

    A.

    6

    B.

    7

    C.

    8

    D.

    5

  3. 3.

    Find the number of paths from (0,0)(0,0) to (2,2)(2,2) that do NOT pass through the point (1,1)(1,1).

    A.

    2

    B.

    4

    C.

    6

    D.

    1

Download the worksheet for Algebra - Calculating network pathways-extended to practice offline. It includes additional chapter-level practice questions.

Weighted networks-extended

Subtopic

Weighted networks-extended under Algebra for Grade 9 IB.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    What is the total weight of the path X→Y→Z→XX \to Y \to Z \to X if XY=2,YZ=3,ZX=4XY=2, YZ=3, ZX=4?

    A.

    5

    B.

    7

    C.

    9

    D.

    24

  2. 2.

    In a weighted graph, what does the term 'edge' refer to?

    A.

    The value of the weight

    B.

    The point where lines meet

    C.

    The link between two nodes

    D.

    The entire matrix

  3. 3.

    If a vertex VV has edges to four other vertices with weights 1,2,3,1, 2, 3, and 44, what is the sum of these weights?

    A.

    10

    B.

    24

    C.

    7

    D.

    15

Download the worksheet for Algebra - Weighted networks-extended to practice offline. It includes additional chapter-level practice questions.

Exponential and logarithmic functions-extended

Subtopic

Exponential and logarithmic functions-extended under Algebra for Grade 9 IB.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    Which constant represents the base of natural logarithms?

    A.

    π\pi

    B.

    ii

    C.

    ee

    D.

    ϕ\phi

  2. 2.

    Solve for xx: 2x+5=112x + 5 = 11.

    A.

    3

    B.

    8

    C.

    6

    D.

    4

  3. 3.

    Which of the following is the inverse of the function f(x)=10xf(x) = 10^x?

    A.

    f−1(x)=x10f^{-1}(x) = x^{10}

    B.

    f−1(x)=log⁡10xf^{-1}(x) = \log_{10} x

    C.

    f−1(x)=110xf^{-1}(x) = \frac{1}{10^x}

    D.

    f−1(x)=10xf^{-1}(x) = 10x

Download the worksheet for Algebra - Exponential and logarithmic functions-extended to practice offline. It includes additional chapter-level practice questions.

Transformations of graphs (translations, reflections, stretches)-extended

Subtopic

Transformations of graphs (translations, reflections, stretches)-extended under Algebra for Grade 9 IB.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    The graph of f(x)=1xf(x) = \frac{1}{x} is transformed into g(x)=1x+2−3g(x) = \frac{1}{x + 2} - 3. What are the translations?

    A.

    Right 2 and Up 3

    B.

    Left 2 and Down 3

    C.

    Left 2 and Up 3

    D.

    Right 2 and Down 3

  2. 2.

    The function f(x)=∣x∣f(x) = |x| is vertically stretched by a scale factor of 0.20.2. What is the resulting equation?

    A.

    g(x)=∣x∣+0.2g(x) = |x| + 0.2

    B.

    g(x)=∣0.2x∣g(x) = |0.2x|

    C.

    g(x)=0.2∣x∣g(x) = 0.2|x|

    D.

    g(x)=∣x−0.2∣g(x) = |x - 0.2|

  3. 3.

    The function f(x)=x3f(x) = x^3 is translated 5 units to the right. What is the equation of the resulting graph?

    A.

    g(x)=(x−5)3g(x) = (x - 5)^3

    B.

    g(x)=x3−5g(x) = x^3 - 5

    C.

    g(x)=(x+5)3g(x) = (x + 5)^3

    D.

    g(x)=x3+5g(x) = x^3 + 5

Download the worksheet for Algebra - Transformations of graphs (translations, reflections, stretches)-extended to practice offline. It includes additional chapter-level practice questions.

Composite and inverse functions

Subtopic

Composite and inverse functions under Algebra for Grade 9 IB.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    If f(x)=x+3f(x) = x + 3, find the value of f−1(f(5))f^{-1}(f(5)).

    A.

    8

    B.

    3

    C.

    5

    D.

    2

  2. 2.

    If f(x)=7xf(x) = 7x, find the value of f(f−1(14))f(f^{-1}(14)).

    A.

    2

    B.

    14

    C.

    98

    D.

    7

  3. 3.

    If f(x)=2xf(x) = \frac{2}{x}, find f−1(1)f^{-1}(1).

    A.

    1

    B.

    2

    C.

    0.5

    D.

    -2

Download the worksheet for Algebra - Composite and inverse functions to practice offline. It includes additional chapter-level practice questions.

Classification of polynomials

Subtopic

Classification of polynomials under Algebra for Grade 9 IB.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    Which of these polynomials is in standard form?

    A.

    1+x+x21 + x + x^2

    B.

    x2+1+xx^2 + 1 + x

    C.

    x2+x+1x^2 + x + 1

    D.

    x+x2+1x + x^2 + 1

  2. 2.

    What is the coefficient of xx in the polynomial x4−7\frac{x}{4} - 7?

    A.

    4

    B.

    1

    C.

    0.25

    D.

    -7

  3. 3.

    How many terms does x3−1x^3 - 1 have?

    A.

    1

    B.

    2

    C.

    3

    D.

    4

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Quadratic sequences (nth term)

Subtopic

Quadratic sequences (nth term) under Algebra for Grade 9 IB.

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Preview questions (no answers)

  1. 1.

    What is the first term of the sequence un=2n2−2n+1u_n = 2n^2 - 2n + 1?

    A.

    1

    B.

    2

    C.

    3

    D.

    0

  2. 2.

    If the nth term is un=n2+10nu_n = n^2 + 10n, what is u10u_{10}?

    A.

    200

    B.

    110

    C.

    100

    D.

    120

  3. 3.

    Find the value of u4u_4 if un=3n2−10u_n = 3n^2 - 10.

    A.

    38

    B.

    48

    C.

    28

    D.

    58

Download the worksheet for Algebra - Quadratic sequences (nth term) to practice offline. It includes additional chapter-level practice questions.

Fibonacci, triangular, and other sequences

Subtopic

Fibonacci, triangular, and other sequences under Algebra for Grade 9 IB.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    What is the next term in the sequence 1,3,5,7,...1, 3, 5, 7, ...?

    A.

    8

    B.

    9

    C.

    10

    D.

    11

  2. 2.

    Find the 5th term of the sequence: 10,20,30,40,...10, 20, 30, 40, ....

    A.

    45

    B.

    50

    C.

    60

    D.

    100

  3. 3.

    What is the common ratio of the geometric sequence 3,6,12,24,...3, 6, 12, 24, ...?

    A.

    2

    B.

    3

    C.

    4

    D.

    6

Download the worksheet for Algebra - Fibonacci, triangular, and other sequences to practice offline. It includes additional chapter-level practice questions.

Solving quadratic equations by completing the square-extended

Subtopic

Solving quadratic equations by completing the square-extended under Algebra for Grade 9 IB.

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Preview questions (no answers)

  1. 1.

    Solve x2+12x+35=0x^2 + 12x + 35 = 0 by completing the square.

    A.

    x=−5,−7x = -5, -7

    B.

    x=5,7x = 5, 7

    C.

    x=−6,1x = -6, 1

    D.

    x=−1,−35x = -1, -35

  2. 2.

    The quadratic x2−2x−5=0x^2 - 2x - 5 = 0 can be written as (x−1)2=k(x - 1)^2 = k. What is kk?

    A.

    6

    B.

    5

    C.

    4

    D.

    1

  3. 3.

    What is the first step in solving x2−6x=4x^2 - 6x = 4 by completing the square?

    A.

    Add 9 to both sides

    B.

    Subtract 4 from both sides

    C.

    Divide by -6

    D.

    Take the square root of both sides

Download the worksheet for Algebra - Solving quadratic equations by completing the square-extended to practice offline. It includes additional chapter-level practice questions.

Quadratic functions in standard, vertex, and intercept forms

Subtopic

Quadratic functions in standard, vertex, and intercept forms under Algebra for Grade 9 IB.

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Preview questions (no answers)

  1. 1.

    Identify the vertex of the function y=(x+15)2+100y = (x + 15)^2 + 100.

    A.

    (15,100)(15, 100)

    B.

    (−15,100)(-15, 100)

    C.

    (−15,−100)(-15, -100)

    D.

    (15,−100)(15, -100)

  2. 2.

    What is the value of aa in the quadratic function y=13x2+xy = \frac{1}{3}x^2 + x?

    A.

    a=1a = 1

    B.

    a=3a = 3

    C.

    a=13a = \frac{1}{3}

    D.

    a=0a = 0

  3. 3.

    If the equation is y=−2(x+4)(x−6)y = -2(x + 4)(x - 6), what is the xx-coordinate of the axis of symmetry?

    A.

    x=1x = 1

    B.

    x=−1x = -1

    C.

    x=5x = 5

    D.

    x=2x = 2

Download the worksheet for Algebra - Quadratic functions in standard, vertex, and intercept forms to practice offline. It includes additional chapter-level practice questions.

Cubic, trigonometric, and logarithmic functions and their asymptotes-extended

Subtopic

Cubic, trigonometric, and logarithmic functions and their asymptotes-extended under Algebra for Grade 9 IB.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    What is the range of the function f(x)=cos⁡(x)−2f(x) = \cos(x) - 2?

    A.

    −1≤y≤1-1 \le y \le 1

    B.

    −3≤y≤−1-3 \le y \le -1

    C.

    0≤y≤20 \le y \le 2

    D.

    All real numbers

  2. 2.

    At what value of xx does y=tan⁡(x)y = \tan(x) have its first positive asymptote?

    A.

    45∘45^{\circ}

    B.

    90∘90^{\circ}

    C.

    180∘180^{\circ}

    D.

    270∘270^{\circ}

  3. 3.

    What is the value of 232^3?

    A.

    6

    B.

    8

    C.

    9

    D.

    5

Download the worksheet for Algebra - Cubic, trigonometric, and logarithmic functions and their asymptotes-extended to practice offline. It includes additional chapter-level practice questions.

Exponential functions and horizontal asymptotes-extended

Subtopic

Exponential functions and horizontal asymptotes-extended under Algebra for Grade 9 IB.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    Which function represents growth and has a horizontal asymptote at y=1y = 1?

    A.

    y=0.5x+1y = 0.5^x + 1

    B.

    y=2x+1y = 2^x + 1

    C.

    y=2x−1y = 2^x - 1

    D.

    y=3xy = 3^x

  2. 2.

    If the graph of y=5xy = 5^x is reflected across the x-axis and shifted up 3 units, what is its asymptote?

    A.

    y=−3y = -3

    B.

    y=5y = 5

    C.

    y=0y = 0

    D.

    y=3y = 3

  3. 3.

    What is the horizontal asymptote of y=0.1x+0.1y = 0.1^x + 0.1?

    A.

    y=0y = 0

    B.

    y=0.1y = 0.1

    C.

    y=1y = 1

    D.

    y=−0.1y = -0.1

Download the worksheet for Algebra - Exponential functions and horizontal asymptotes-extended to practice offline. It includes additional chapter-level practice questions.