SOLUTION: how do i write the quadratic equation used to find the time when the rocket reaches 80 ft. if y=55+33t-5t^2 where y is the height and t is the tim ethe rocket has been in the air?

Question 43: how do i write the quadratic equation used to find the time when the rocket reaches 80 ft. if y=55+33t-5t^2 where y is the height and t is the tim ethe rocket has been in the air?
Answer by ichudov(507) (Show Source): You can put this solution on YOUR website!
Very simple. The problem says that y is height. So, put word height instead of y:

Since the problem tells you that height is 80 feet, you have

that is your quadratic equation.
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