Question

The data given for a football kicked from the field follows a quadratic model, h(x) = - 3x2 + 18x + 7. Where h(t) is the height in feet and t is the in seconds. Using this model, what is the maximum height the ball will reach?

43 ft
7 ft
34 ft
17 ft

Answer 1

C) 34

Explanation:

use -b/2a to find the x value of the vertex (3)

then plug 3 into equation

- 3(3)² + 18(3) + 7

the answer is 34