SOLUTION: The path of a ball projected in the air can be represented by the equation h=16t^2+64t where h represents height, and t represents time at what time is the ball 48 feet high?

Question 324951: The path of a ball projected in the air can be represented by the equation h=16t^2+64t where h represents height, and t represents time at what time is the ball 48 feet high?
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
The path of a ball projected in the air can be represented by the equation h=16t^2+64t where h represents height, and t represents time at what time is the ball 48 feet high?
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h=16t^2+64t
Set h = 48

Solved by pluggable solver: SOLVE quadratic equation (work shown, graph etc)

Quadratic equation (in our case ) has the following solutons:

For these solutions to exist, the discriminant should not be a negative number.

First, we need to compute the discriminant : .

Discriminant d=28 is greater than zero. That means that there are two solutions: .

Quadratic expression can be factored:

Again, the answer is: 0.645751311064591, -4.64575131106459. Here's your graph:

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no units given
I don't think your equation is right. The ball never comes back down.

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