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Introduction to Polynomials

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

Define algebraic expressions and identify polynomial terms, coefficients, and degree

Subtopic

Define algebraic expressions and identify polynomial terms, coefficients, and degree under Introduction to Polynomials for Grade 9 CBSE.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    If p(x)=7xβˆ’2p(x) = 7x - 2, then p(0)p(0) is:

    A.

    7

    B.

    0

    C.

    2

    D.

    -2

  2. 2.

    What is the degree of the polynomial y100βˆ’1y^{100} - 1?

    A.

    1

    B.

    0

    C.

    100

    D.

    99

  3. 3.

    Find the value of p(x)=x4p(x) = x^4 at x=βˆ’1x = -1.

    A.

    -1

    B.

    0

    C.

    1

    D.

    4

Download the worksheet for Introduction to Polynomials - Define algebraic expressions and identify polynomial terms, coefficients, and degree to practice offline. It includes additional chapter-level practice questions.

Model real-life linear situations using linear polynomials and expressions

Subtopic

Model real-life linear situations using linear polynomials and expressions under Introduction to Polynomials for Grade 9 CBSE.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    A monthly gym membership costs β‚Ή1000β‚Ή1000 plus β‚Ή50β‚Ή50 for every personal training session. What is the cost for ss sessions?

    A.

    1050s1050s

    B.

    50s+100050s + 1000

    C.

    1000s+501000s + 50

    D.

    50(s+1000)50(s + 1000)

  2. 2.

    A car has 4040 liters of fuel and uses 22 liters per km. How much fuel is left after xx km?

    A.

    40βˆ’2x40 - 2x

    B.

    2xβˆ’402x - 40

    C.

    38x38x

    D.

    40+2x40 + 2x

  3. 3.

    A rectangle has a perimeter of 2020 cm. If the length is xx cm, what is the linear expression for its width?

    A.

    20βˆ’x20 - x

    B.

    10βˆ’x10 - x

    C.

    xβˆ’10x - 10

    D.

    20βˆ’2x20 - 2x

Download the worksheet for Introduction to Polynomials - Model real-life linear situations using linear polynomials and expressions to practice offline. It includes additional chapter-level practice questions.

Recognise and generalise linear patterns from tables, sequences, and contexts

Subtopic

Recognise and generalise linear patterns from tables, sequences, and contexts under Introduction to Polynomials for Grade 9 CBSE.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    Find the constant cc in the rule y=3x+cy = 3x + c if y=7y = 7 when x=2x = 2.

    A.

    1

    B.

    2

    C.

    3

    D.

    0

  2. 2.

    What is the next term in the sequence 1,1.1,1.2,1.3,…1, 1.1, 1.2, 1.3, \dots?

    A.

    1.31

    B.

    1.4

    C.

    2.0

    D.

    1.5

  3. 3.

    If y=x/2y = x/2, what is yy when x=10x=10?

    A.

    20

    B.

    5

    C.

    12

    D.

    8

Download the worksheet for Introduction to Polynomials - Recognise and generalise linear patterns from tables, sequences, and contexts to practice offline. It includes additional chapter-level practice questions.

Model linear growth and decay in practical scenarios using equations

Subtopic

Model linear growth and decay in practical scenarios using equations under Introduction to Polynomials for Grade 9 CBSE.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    A shop sells juice. A 10001000 ml bottle is being used to fill cups of 200200 ml each. Find the polynomial J(n)J(n) for the volume left in the bottle after nn cups are filled.

    A.

    J(n)=1000βˆ’200nJ(n) = 1000 - 200n

    B.

    J(n)=200nβˆ’1000J(n) = 200n - 1000

    C.

    J(n)=1000+200nJ(n) = 1000 + 200n

    D.

    J(n)=800nJ(n) = 800n

  2. 2.

    A cooling system reduces the temperature by 3∘C3^\circ\text{C} per hour. If the starting temperature is 35∘C35^\circ\text{C}, find the polynomial T(h)T(h) for the temperature after hh hours.

    A.

    T(h)=3hβˆ’35T(h) = 3h - 35

    B.

    T(h)=35+3hT(h) = 35 + 3h

    C.

    T(h)=35βˆ’3hT(h) = 35 - 3h

    D.

    T(h)=32hT(h) = 32h

  3. 3.

    A person walks at a constant speed of 44 km/h. If they have already walked 22 km, find the polynomial D(h)D(h) for the total distance after hh additional hours.

    A.

    D(h)=4h+2D(h) = 4h + 2

    B.

    D(h)=2h+4D(h) = 2h + 4

    C.

    D(h)=6hD(h) = 6h

    D.

    D(h)=4hβˆ’2D(h) = 4h - 2

Download the worksheet for Introduction to Polynomials - Model linear growth and decay in practical scenarios using equations to practice offline. It includes additional chapter-level practice questions.

Interpret slope and y-intercept to visualise linear relationships in y = ax + b

Subtopic

Interpret slope and y-intercept to visualise linear relationships in y = ax + b under Introduction to Polynomials for Grade 9 CBSE.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    What is the slope of the line y=x+100y = x + 100?

    A.

    100

    B.

    0

    C.

    1

    D.

    x

  2. 2.

    In the polynomial p(x)=βˆ’7xp(x) = -7x, what is the value of bb?

    A.

    -7

    B.

    7

    C.

    1

    D.

    0

  3. 3.

    If a line has a slope of 00 and a y-intercept of 33, its equation is:

    A.

    y = 3x

    B.

    y = 0

    C.

    y = 3

    D.

    x = 3

Download the worksheet for Introduction to Polynomials - Interpret slope and y-intercept to visualise linear relationships in y = ax + b to practice offline. It includes additional chapter-level practice questions.