Answer:
13 = x 15 - x = 2
Step-by-step explanation:
15-x=2
15-13=2
Plug it into a graphing calculator and see where the function crosses the x-axis. Since it’s a quadratic it will cross it two times but one of the answers is negative—obviously it wouldn’t take negative second to hit the ground. It should take 9 seconds for the object to hit the ground.
56°
it goes up by 2 each small line