If a football player passes a football from 4 feet off the ground with an initial velocity of 36 feet per second, how long will it take the football to hit the ground? Use the equation h = -16t^2 + 36t + 4.

Question

anonymous · Answer

set  -16t^2 + 36t + 4 = to zero
solve, you will get 2 zero values, one was the pass (had it been thrown from ground level), the other is when it hits the ground|dw:1383854106637:dw|
x=time
y=distance off the ground

anonymous · Answer

factor out a 4 first...

anonymous · Answer

okay so when i set the equation to zero i have 16t^2-36t-4=0.. how do i factor four? Thanks for your help:)

anonymous · Answer

|dw:1383854479190:dw|