Question

Copy and complete the table of values for

y = -2x² + 4x + 9.
What numbers replace A and B?

Answer 1

Below in bold.

Explanation:

A = value of y when x = -1:

A = -2(-1)^2 + 4(-1) + 9

= -2*1 - 4 + 9

= -2 - 4 + 9

= 3.

B = value of y when x = 2:

B = -2(2)^2 + 4(2) + 9

= -2*4 + 8 + 9

= - 8 + 8 + 9

= 9.