Question

Multi-step Function Inverses (Level 1)

For the function f(x)=9 (x-8), find f^-1 (x)

Answer 1

Answer: f^-1(x) = x/9 + 8

Explanation:

Answer 2

Option 1

Explanation:

y = 9(x - 8)

Make x the subject

y/9 + 8 = x

Interswitch variables

f^-1(x) = x/9 + 8