Question

joshni threw a ball and its height is represented by the function h(t) = -16t2 + 30t + 5. Explain how she can determine the maximum height the ball reached. Use complete sentences to receive full credit.

Answer 1

do you know how to find vertex?

Answer 2

since the height is a parabola, its maximum point is the vertex of the parabola.

Answer 3

a downward parabola*

Answer 4

parabola : ax^2 + bx + c
vertex formula = -b/ (2a)
vertex = -30/(2*-16)
vertex = ? lemme know if you need more hints.