Question

Suppose Paul kicks a soccer ball straight up into the air with an initial velocity of 96 feet per second. The function f(x) = -16t2 + 96t gives the height, in feet, of the soccer ball after t seconds. This function is shown in the graph below.

What do the x-intercepts represent in this real life situation in regards to the height of the soccer ball at that time?

Answer 1

Answer: the x intercepts represent the time in seconds. It shows how long the soccer ball was in the air and when it hit the ground. It tells us that the soccer ball hit the ground at 6 seconds