SOLUTION: A golfer hits the golf ball. The quadratic y = -13x^2 + 65x gives the time x seconds when the golf ball is at height 0 feet. In total, how long is the golf ball in the air?

Question 1161597: A golfer hits the golf ball. The quadratic y = -13x^2 + 65x gives the time x seconds when the golf ball is at height 0 feet. In total, how long is the golf ball in the air?
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
-13x^2+65x+0
-13x(x-5)=0
x=5 sec when it hits the ground.
It is in the air for 5 seconds

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