SOLUTION: Graph the quadratic equation y= -x^2 - 4x

SOLUTION: Graph the quadratic equation y= -x^2 - 4x - 3

Question 250564: Graph the quadratic equation
y= -x^2 - 4x - 3
Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
parabola open downwards

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=4 is greater than zero. That means that there are two solutions: .

Quadratic expression can be factored:

Again, the answer is: -3, -1. Here's your graph:

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