Apunter kicks a football upward with an initial velocity of 48 feet per second. after how many seconds does the ball hit the ground? use the formula h=rt−16t2, where h represents height in feet and r represents the initial velocity (rate) in feet per second. a. 3 b. 6 c. 8 d. 12

A. 3

Fill in the given values in the formula (h=0, r=48) and solve for t.

... 0 = 48t -16t²

... 0 = 16t(3 -t)

This is true for t = 0 and for t = 3.

The ball will take 3 seconds to hit the ground.

17.08

correct me if i am wrong.

check above link.

graphically?   well, you graph them both, the solutions is where they both intersect each other, since there are two solutions, meaning they will meet twice, or namely the linear will run into the quadratic curve twice, and where they meet, those x,y coordinates are the solutions to the system.