Question

What is the inverse of the linear function `f(x) = -10 + 8x`?

Answer 1

`f^-1= 1/8(x+10)`

Explanation:

Let y=-10+8x. Now interchange x and y and solve for y:

x= -10 +8y `->` 8y= x+10

Therefore `y=1/8(x+10)`

Thus `f^-1= 1/8(x+10)`