8. A ball is thrown into the air with an upward velocity of 128 ft/s. Its height, h, after t seconds is given by the function h = -16t?+128t+320. How many seconds
did it take for the ball to reach its maximum height?
10 Seconds
O
4 Seconds
O 486 Seconds
O 2 seconds

that is the sum

step-by-step explanation:

there are no other answers without knowing the variables values

step-by-step explanation:

i think something is missing in your question because y-1=(x-12) would not pass through the point (-4,-3). because if you replace x by -4 your are supposed to find y=-3 which is not the case her. if you replace x by -4 you find =-15.

i assume the right equation is y-1=1/4*(x-12) because this one is passing through both your points (if you are interested to know how i found that out i can tell you).

in this equation if i replace x by -4 i find y=-3 and if i replace x by 12, i find y=1 so the line representing this equation is passing through those 2 points.

then the standard form of the equation is finding an expression of y in function of x

y-1=1/4*(x-12)

y=x/4-3+1

y=x/4-2

hope that .

do you confirm there was a mistake in the question?

answer: what in the world is this

step-by-step explanation: