Question

Graph the solution of the inequality.

14 ≤ 2t + 18 < 20

Answer 1

max occurs when x = -b/2a = -45/(2*-16) = 1.40625
The max height is f(1.40625) = -16(-1.40625)^2 + 45(1.40625) + 40
= 71.64 ft.

Answer 2

lol.. i'm pretty sure you meant that answer for someone else? XD