AP Calculus ABeasymcq1 pt
If f(x) = 2x + 3 and g is the inverse function of f, find g'(5).
A.1/2
B.2
C.1/5
D.-1/2
Correct. Since f(1) = 5, we have g(5) = 1. By the inverse function theorem, g'(5) = 1/f'(g(5)) = 1/f'(1) = 1/2.
A1/2
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