SOLUTION: h=-9.8t^2+15t+160

Question 549311: h=-9.8t^2+15t+160
Answer by JBarnum(2146) (Show Source): You can put this solution on YOUR website!

Solved by pluggable solver: SOLVE quadratic equation with variable

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=6497 is greater than zero. That means that there are two solutions: .

Quadratic expression can be factored:

Again, the answer is: -3.34714133293605, 4.87775357783401. Here's your graph:

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