Algebra Help Please?
(Of course best answer gets medal)

A ball is thrown into the air with an upward velocity of 45 t/s. Its height (h) in feet after t seconds is given by the function h = -16t^2 + 45t + 6. After about how many seconds will the ball hit the ground?

Question

Algebra Help Please?
 (Of course best answer gets medal)

A ball is thrown into the air with an upward velocity of 45 t/s. Its height (h) in feet after t seconds is given by the function h = -16t^2 + 45t + 6. After about how many seconds will the ball hit the ground?

anonymous · Answer

plug -16t^2+45t+6 into your calculator and graph it.  If you adjust the windows and find where the parabola meets the x-axis, the x value is your answer

anonymous · Answer

I did it which part is the parabola? is it just the first part of the graph to touch the x-axis? sorry I forgot -_-

anonymous · Answer

the 2nd, so 4 seconds

anonymous · Answer

3 my bad

anonymous · Answer

Thank you so much I gave you your well deserved medal

anonymous · Answer

you're very welcome