Worksheet: Identifying Polynomials

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In this worksheet, we will practice identifying polynomial expressions.

Q1:

Which of the following functions is a polynomial?

  • A 𝑓 ( 𝑥 ) = 𝑥 𝑥 + 𝑥 − 1 7
  • B 𝑓 ( 𝑥 ) = 𝑥 + 1 7 𝑥
  • C 𝑓 ( 𝑥 ) = 1 8
  • D 𝑓 ( 𝑥 ) = √ 𝑥 + 1 7
  • E 𝑓 ( 𝑥 ) = 𝑥 + √ 𝑥 + 1 7

Q2:

Which of the following functions is a polynomial?

  • A 𝑓 ( 𝑥 ) = 𝑥 𝑥 + 𝑥 − 4 4
  • B 𝑓 ( 𝑥 ) = 𝑥 + 4 4 𝑥
  • C 𝑓 ( 𝑥 ) = 4 5
  • D 𝑓 ( 𝑥 ) = √ 𝑥 + 4 4
  • E 𝑓 ( 𝑥 ) = 𝑥 + √ 𝑥 + 4 4

Q3:

Which of the following functions is a polynomial?

  • A 𝑓 ( 𝑥 ) = 𝑥 𝑥 + 𝑥 − 4 1
  • B 𝑓 ( 𝑥 ) = 𝑥 + 4 1 𝑥
  • C 𝑓 ( 𝑥 ) = 4 2
  • D 𝑓 ( 𝑥 ) = √ 𝑥 + 4 1
  • E 𝑓 ( 𝑥 ) = 𝑥 + √ 𝑥 + 4 1

Q4:

Which of the following expressions are polynomials?

  1. 𝑥 + 5 𝑥 𝑦 − 2
  2. 𝑥 𝑦
  3. 𝑥 𝑦
  4. 5 𝑥 − 4 𝑥 𝑦
  • Ac and d
  • Ba and c
  • Ca and b
  • Da and c
  • Eb and d

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