Question

Find the inverse of the function y=8x-7

Answer 1

1) To find out the inverse function, assuming this function admits one, let's proceed with these steps:

y=8x -7 Swap x for y

x = 8y -7 Let's isolate y on the left side subtracting 8y from both sides

x -8y = -7 Add -x to both sides

-8y = -7 -x Divide both sides by -8

y =7/8 +x/8 Write the proper notation

`f^(-1)(x)\text{ =}(x)/(8)+(7)/(8)`

2) And that's the answer