Question

do i just substitute 120 for t

Answer 1

calculate the axis of symmetry using x = -b/(2a)

Answer 2

so 120 would be umm b?

Answer 3

yes

Answer 4

and a?

Answer 5

what's the coefficient of the x^2 term?

Answer 6

or in this case, the t^2 term?

Answer 7

would it be 120^2

Answer 8

in the equation, what number is being multiplied to t^2?

Answer 9

16

Answer 10

good but don't forget the negative sign

so a = -16 and b = 120

calculate -b/(2a)

Answer 11

88

Answer 12

check your math again

-120/(2* (-16)) = ?

Answer 13

960

Answer 14

-120 / -32 = ?

Answer 15

3.75

Answer 16

good so the maximum height occurs at t = 3.75 = your ans

Answer 17

thank you