Question

Find the inverse of the equation y = –4x – 8.

Answer 1

y = 4x +8

Explanation:

Just take the signs of the integers and switch them around! -4 becomes +4, and -8 becomes +8. Note that you should not switch multiplication to division, this only works for addition and subtraction signs.

Answer 2

The answer is
f−1(x)=−x/4−2