Delbert stands at the top of a 300-foot cliff and throws his algebra book directly upward with a velocity of 20 feet per
second. The height of his book above the ground t seconds later is given by the equation
h = - 16t² + 20t + 300
where h is in feet.
Graph the height equation on your calculator. Use your graph and a table of values to help you answer the questions.
a. When does Delbert's book pass him on its way down?
b. Write and solve an equation to answer the question:
How long will it take Debert's book to hit the ground at the bottom of the cliff?