Question

What is the inverse of function f(x)=10/9x+11

Answer 1

The inverse is 9/10(x-11)

Explanation:

y = 10/9x +11

Exchange x and y

x = 10/9 y +11

Solve for y

x-11 = 10/9 y+11-11

x-11 = 10/9y

Multiply each side by 9/10

9/10(x-11) = 9/10 ( 10/9) y

9/10(x-11) = y

The inverse is 9/10(x-11)