Evaluating quadratic functions, any help? Thank You!!

Question

asked Apr 16, 2024 202k views

1 Answer

Evan V · Answer 1 · 2024-04-23T12:15:14+0000

Answer:

1) 142. 2) -42

Explanation:

1) replace all x in the equation with 9.

x^2 + 7x - 2

= 9^2 + 7(9) -2

= 81 + 63 -2

= 142

2) - (-3)^2 + 5(-3) -18

= - (-3 X -3) - 15 -18

= - (+9) - 15 - 18

= -9 -15 -18

= -42