a) Evaluate and interpret . ? h(2) represents the height of the ball at time t=2 seconds. h(2) represents the time when the ball is at height 2 feet. h(2) means the ball was thrown from 2 feet above the ground.

b) Solve the equation . Enter the smaller number first, if applicable. Interpret your solutions. ? t= h(t)= ? t= h(t)= ? These values of t are the times at which the ball is 80 feet above the ground. These values of t are the times at which the ball is on the ground. These values of h(t) are the heights at which the ball could be at time t=80 seconds.

c) When does the ball hit the ground after it is thrown? At time

Hint: