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Lesson: Evaluating a Polynomial Function for a Given Value

Sample Question Videos

Worksheet • 11 Questions • 5 Videos

Q1:

Find the value of 𝑓 ( 8 ) given the function 𝑓 ( π‘₯ ) = 3 βˆ’ 7 π‘₯ .

Q2:

Evaluate 𝑓 ο€Ό 5 7  given that 𝑓 ( π‘₯ ) = 3 π‘₯ + 3 4 .

  • A 2 2 5 2 8
  • B 1 1 7 2 8
  • C 2 1 7
  • D 3 3 4
  • E 1 1 3 2 8

Q3:

Find the value of 𝑓 ( 8 ) given the function 𝑓 ( π‘₯ ) = π‘₯ βˆ’ 1 4 3 .

Q4:

Find the value of 𝑓 ( 1 4 ) given the function 𝑓 ( π‘₯ ) = π‘₯ βˆ’ 2 8 π‘₯ + 7 2 .

Q5:

Find the value of 𝑓 ο€» √ 2  given the function 𝑓 ( π‘₯ ) = π‘₯ + √ 2 π‘₯ 2 .

Q6:

If 𝑓 ( π‘₯ ) = βˆ’ 8 π‘₯ βˆ’ 3 π‘₯ + 4 2 , find 𝑓 ( βˆ’ 3 ) .

Q7:

Complete the given table of values for the function 𝑦 = 5 π‘₯ βˆ’ 2  .

π‘₯ βˆ’ 2 βˆ’ 1 0 1 2
𝑦
  • A βˆ’ 4 2 , βˆ’ 7 , βˆ’ 2 , 3 , 3 8
  • B βˆ’ 8 , 1 , βˆ’ 2 , βˆ’ 1 , 1 0
  • C βˆ’ 1 0 , βˆ’ 3 , βˆ’ 2 , 3 , 3 8
  • D βˆ’ 3 8 , βˆ’ 3 , βˆ’ 2 , 5 , 4 0
  • E βˆ’ 4 0 , βˆ’ 5 , 5 , 5 , 4 0

Q8:

Find 𝑓 ( βˆ’ 3 ) + 𝑓 ( 5 ) given 𝑓 ( π‘₯ ) = π‘₯ 3 .

Q9:

Given the function 𝑑 ( 𝑠 ) = 𝑠 βˆ’ 4 𝑠 3 , evaluate 𝑑 ( 4 ) .

Q10:

Find the value of 𝑓 ( 5 ) given the function 𝑓 ( π‘₯ ) = π‘₯ βˆ’ 2 3 π‘₯ + 3 1 2 .

Q11:

If 𝑓 ( π‘₯ ) = 7 π‘₯ + 1 0 π‘₯ + 4 2 , find 𝑓 ( βˆ’ 1 ) .

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