Cecily is on her roof and wants to throw a ball straight up in the air and figure out how long it will take to reach the ground. The function of an object failing to the ground is f(x) =-32x^2+vx+d. In this function, x is time, v is initial (vertical) velocity in feet per second, and d is the initial distance above the ground in feet. If v is positive= velocity upward. If v is negative= downward. I need to know:

a. The function if Cecily releases the ball 40 feet above the ground at a velocity of 64 feet per second.

b. at that rate how long will it take for the ball to hit the ground.

please help

heyyy

step-by-step explanation:

8496 cars

step-by-step explanation:

11

step-by-step explanation:

32.50-7.50=25

225/25=11

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?