Question

Worth 50 points!! Identify the errors made in finding the inverse of y = x^2 + 12x.

Answer 1

The inverse would be -6 $\sqrt{y+36}$

Answer 2

Answer:

error is in step (1) x and y should be flipped.

Step-by-step explanation:

Steps to find inverse should be

y = x² + 12x

x = y² + 12y

x + 36 = y² + 12y +36

x + 36 = (y + 6)²

$\sqrt{x+36}=(y+6)$

y = $(\sqrt{x+36}-6)$

So inverse will be y = $(\sqrt{x+36}-6)$

Therefore, error is in step (1) x and y should be flipped.