Question

Which function is the inverse of the function f(r) = 2r?

A. g(r) = r/2
B. h(r) = r + 2
C. p(r) = 7 - 2r
D. q(r) = 2r

Answer 1

The inverse of the function f(r) = 2r is g(r) = r/2.

Step-by-step explanation:

The inverse of a function undoes the operation of the original function. To find the inverse of the function f(r) = 2r, we need to solve for r. We can do this by isolating r on one side of the equation. Starting with f(r) = 2r, we divide both sides by 2 to get r = f(r)/2. Therefore, the inverse function of f(r) = 2r is g(r) = r/2, so the correct answer is A.