1.4 Defining New Functions from Old: Quiz

Problem 9

Which of the following functions have inverses? Choose all that apply.

  1. f(x) = x2
  2. g(t) = e2t + 1
  3. h(x) = sin(x)
  4. k(d) = –2d + 2
  5. v(r) = 4/3 πr3

Answers, problem 9

g(t) = e2t + 1, k(d) = –2d + 2 and v(r) = 4/3 πr3 have inverses.

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