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Evaluate composite functions f(g(a))

10th grade (Year 11 in England) · 16 questions · Common Core: HSF.BF.A.1.C · England: GCSE Higher Algebra

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  1. Question 1

    x: 1, 2, 3, 4, 5 f(x): 1, 2, 4, 5, 3 g(x): 5, 4, 1, 2, 3 Find f(g(2)).

    Answer

  2. Question 2

    f(x) = −2x − 5 and g(x) = x² − 4. Find f(g(−2)).

    Answer

  3. Question 3

    x: 1, 2, 3, 4, 5 f(x): 1, 3, 4, 2, 5 g(x): 1, 2, 3, 4, 5 Find f(g(3)).

    Answer

  4. Question 4

    f(x) = x and g(x) = x² + 1. Find f(g(−4)).

    Answer

  5. Question 5

    x: 1, 2, 3, 4, 5 f(x): 4, 2, 1, 3, 5 g(x): 5, 1, 2, 4, 3 Find f(g(2)).

    Answer

  6. Question 6

    f(x) = 4x − 2 and g(x) = x² + 3. Find g(f(2)).

    Answer

  7. Question 7

    x: 1, 2, 3, 4, 5 f(x): 2, 5, 4, 1, 3 g(x): 4, 5, 2, 3, 1 Find f(g(1)).

    Answer

  8. Question 8

    f(x) = −x + 8 and g(x) = x² − 1. Find f(g(1)).

    Answer

  9. Question 9

    x: 1, 2, 3, 4, 5 f(x): 4, 3, 5, 1, 2 g(x): 2, 1, 4, 3, 5 Find f(g(4)).

    Answer

  10. Question 10

    f(x) = −5x − 3 and g(x) = x² + 4. Find g(f(−4)).

    Answer

  11. Question 11

    x: 1, 2, 3, 4, 5 f(x): 1, 2, 5, 4, 3 g(x): 3, 4, 2, 5, 1 Find f(g(1)).

    Answer

  12. Question 12

    f(x) = −4x − 7 and g(x) = x² + 3. Find f(g(3)).

    Answer

  13. Question 13

    x: 1, 2, 3, 4, 5 f(x): 1, 4, 3, 5, 2 g(x): 5, 3, 4, 2, 1 Find f(g(4)).

    Answer

  14. Question 14

    f(x) = 3x + 8 and g(x) = x² − 5. Find f(g(2)).

    Answer

  15. Question 15

    x: 1, 2, 3, 4, 5 f(x): 1, 4, 5, 3, 2 g(x): 2, 5, 4, 1, 3 Find f(g(3)).

    Answer

  16. Question 16

    f(x) = −4x + 6 and g(x) = x² + 5. Find f(g(3)).

    Answer

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  2. -5
  3. 4
  4. 17
  5. 4
  6. 39
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  16. -50