SOLUTION: Quadratic equation parabola.. y=16-x-x^2

Question 982205: Quadratic equation parabola..
y=16-x-x^2
Answer by macston(5194) (Show Source): You can put this solution on YOUR website!
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y=-x^2-x+16

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=65 is greater than zero. That means that there are two solutions: .

Quadratic expression can be factored:

Again, the answer is: -4.53112887414927, 3.53112887414927. Here's your graph:

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