Question

Which equation is the inverse of y = 2x^2 - 8?

Y=+sqr rt x+8/2
Y=+sqr rt x+8/2
Y=+sqr rt x/2+8
Y=+sqr rt x/2+4
ASAP

Answer 1

Answer: A

Explanation:

`y=2x^2-8`

1. Swap x and y.

`x=2y^2-8`

2. Solve for the new y.

Add 8

`x+8=2y^2`

Divide by 2.

`(x+8)/(2)=y^2`

Extract the square root.

`\sqrt{(x+8)/(2) }=y`