Question

Determine the value of x given f(x) = 10

A. 10
B. 11
C. 33
D. 30

Answer 1

Given: f(x) = 10

To find: x

Solution: We know that in general function is mapped in the form

f(x) = y

therefore we can observe from given figure that f(30)= 10

Henceforth the solution is option D. 30