Answer to Question #220914 in Algebra for Rajeev Tomar

Question

You've been asked to build a machine for a TV commercial that

launches soda bottles from ground level over a volleyball net.

You estimate the soda needs to clear at least 8 feet in order

to sail over the net. The equation that represents the height of

the bottle as a function of time (

t

) in seconds is:

h

=

−

16

t

2

+

33.6

t

How many times does the soda cross the 8 foot threshold?