An object is launched upward at 64 ft/sec from a platform that is 80 feet high. What is the object's maximum height if the equation of height (h) in terms of time (t) of the object is given by h(t) = -16t^2 + 64t + 80?
A. 272
B. 144
C. 1232
D. 616

Question

An object is launched upward at 64 ft/sec from a platform that is 80 feet high. What is the object's maximum height if the equation of height (h) in terms of time (t) of the object is given by h(t) = -16t^2 + 64t + 80?
	A.	272
	B.	144
	C.	1232
	D.	616

anonymous · Answer

find the y value of the vertex

anonymous · Answer

First, find t, using the vertex formula $$-b \over 2a$$, then, plug in your answer t=? into the equation to find the height.