Question

What is the inverse of the function f(x) = one-ninthx + 2?

Answer 1

Answer:   9x - 18

Step-by-step explanation:

Inverse is when you swap the x's and y's and solve for y

$\text{Given: }\quad y=\dfrac{1}{9}x+2\\\\\text{Swapped: }x=\dfrac{1}{9}y+2\\\\.\qquad \quad x-2=\dfrac{1}{9}y\\\\.\qquad 9(x-2)=y\\\\.\quad \large\boxed{9x-18=y}$