Find indicated values

Question

A graph of a function is given. Use the graph to find the indicated values.

(a)    f ⁻¹(3)

(b)    f ⁻¹(5)

(c)    f ⁻¹(6)

Answer 1

f(5) = 3, so f^-1(3) = 5

f(2) = 5, so f^-1(5) = 2

f(0) = 6, so f^-1(6) = 0