Question

Find the inverse of y=x^2-7

Answer 1

x = ±
`√((y +7))`

Explanation:

Step 1: Replace y with x and x with y.

x = y^2 - 7

Step 2: Solve the resulting equation for y.

x + 7 = y^2

Step 3: Take the square root of both sides, considering both the positive and negative square roots.

y = ±
`√((y+7))`