2. the height of a ball in feet is modeled by
f(x) = -16x2 + 80x, which is shown below,
where x is the time in seconds after it is hit.
02 4 6 8 10
a. how long is the ball in the air?
b. find and interpret the vertex of the graph.

if you explain the the question more correctly i might be able to answer this better

step-by-step explanation:

show us the graphs dude

step-by-step explanation:

a .4y4

hope this !

b. y = 4x - 2

step-by-step explanation:

to find a parallel equation to an equation, make sure both equations have the same slope but different y-intercepts.

y = 4x + 1

4 = slope

1 = y-intercept

y = 4x - 2

4 = slope

-2 = y-intercept

they both have the same slope but different y-intercepts, so, b. is the correct answer.

and to check your work, you can graph both equations. : )