mighty_pen31
HELP!
Given f(t)=-16t^2+80t+4 represents the height of a baseball after being hit.
a. Re-write f(t) in f(t)=a(t-h)^2+ k
b. what is the max. height of the ball?
c. if the ball was caught at a height of 68 cm , how long was the ball in the air?
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saifoo.khan
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Convert the equation into completing square form!
mighty_pen31
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but I don't know how to do that, I didn't learn that at'l
mr.luna
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|dw:1334805908960:dw|
saifoo.khan
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|dw:1334806084616:dw|
mr.luna
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|dw:1334806133172:dw|
saifoo.khan
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nice drawing..
saifoo.khan
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@mighty_pen31 , did you solved yet?
mighty_pen31
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of course..not, anyway, thanks for the help