Question

Which function is equivalent to y = 2(x – 4)^2 + 8?

A. y= 2x² + 24

B y=2x^2 – 16x + 40

C y= 2x^2 – 16x +48

D y=2x² – 8x + 24

Answer 1

B: y = 2x² - 16x + 40

Explanation:

You can find this simply by expanding the given function:

y = 2(x - 4)² + 8

y = 2(x² - 8x + 16) + 8

y = 2x² - 16x + 32 + 8

y = 2x² - 16x + 40