Algebra 1b: Unit 5 Obj 1: Evaluate A Function

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| By Vicki Barr
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Vicki Barr
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Quizzes Created: 14 | Total Attempts: 2,242
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Algebra 1b: Unit 5 Obj 1: Evaluate A Function - Quiz

Given a function, students will evaluate for a certain value of x


Questions and Answers
  • 1. 

    Evaluate the function.  Let f(x) = Find f(5) =

    • A.

      64

    • B.

      28

    • C.

      22

    • D.

      8

    Correct Answer
    B. 28
    Explanation
    To evaluate the function f(x), we need to substitute x with 5. Therefore, f(5) = 28.

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  • 2. 

    Evaluate the function.  Let f(x) = Find f(-7) =

    • A.

      52

    • B.

      -46

    • C.

      16

    • D.

      -16

    Correct Answer
    A. 52
    Explanation
    To evaluate the function f(x), we need to substitute x with -7. So, f(-7) = 52.

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  • 3. 

    Let g(x) = 8 - x + 6x     Evaluate g(5)

    • A.

      27

    • B.

      33

    • C.

      28

    • D.

      -27

    Correct Answer
    B. 33
    Explanation
    The given function is g(x) = 8 - x + 6x. To evaluate g(5), we substitute x = 5 into the function. g(5) = 8 - 5 + 6(5) = 8 - 5 + 30 = 33.

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  • 4. 

    Let h(x) = Evaluate h(16)

    • A.

      3

    • B.

      9

    • C.

      -3

    • D.

      21

    Correct Answer
    C. -3
    Explanation
    The function h(x) is not given, but we are asked to evaluate h(16). The answer given is -3. This suggests that when x is equal to 16, h(x) is equal to -3.

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  • 5. 

    Solve the function h(x) = -2x + 13 for x = - 4

    • A.

      5

    • B.

      -5

    • C.

      13

    • D.

      21

    Correct Answer
    D. 21
    Explanation
    To solve the function h(x) = -2x + 13 for x = -4, we substitute x = -4 into the function. By substituting the value, we get h(-4) = -2(-4) + 13 = 8 + 13 = 21. Therefore, the correct answer is 21.

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