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I'm thinking 0.5 < t < 2
I'm just confused, fully with the entire thing. If you don't mind, could you help me with another question?
highest point should be the vertex and the rightest zero x value of vertex = -b/2a given ax^2 + bx + c so plug in and you will get your first point
the other point would be solve -16x^2 + 16x + 32 = 0 and take the positive answer, then you will get your other point
Ohhh okay. I have one more question that I don't get, can you help me?
Yes I will help with what I can :)
Thank you ^.^ A punter kicks a football upward with an initial speed of 48 feet per second. After how many seconds does the ball hit the ground? Use the formula h = rt − 16t2 where h represents height in feet and r represents the initial speed.
h = 0 when it hits the ground, therefore: -16t^2 + 48t = 0 _________________________ Factor out -16t -16t(t + 3) = 0 : Two solutions t = 0, when it begins it's upward journey and t = 3 sec, when it returns to earth
So the answer would end up being 3?
Okay, thank you so much! That last one was easier than I thought, I thought there were more steps cx
No problem :P