Question

7.

Use the quadratic function to predict y if x equals 6.

y = 2x2 − 2x − 2

A. y = 60

B. y = −58

C. y = −60

D. y = 58

Answer 1

D. y = 58

Explanation:

I got this correct on the quiz on Gradpoint.

Answer 2

Just plug in the value: x = 6
Y = 2(6)^2 - 2(6) - 2
Y = 2(36) - 12 - 2
Y = 72 - 12 - 2 = 60 - 2 = 58

Solution: D. 58