SOLUTION: find the vertex of the parabola y = -4x2 - 16x - 11
Algebra.Com
Question 530685: find the vertex of the parabola y = -4x2 - 16x - 11
Answer by Earlsdon(6294) (Show Source): You can put this solution on YOUR website!
The x-coordinate of the vertex can be found by:
where: a = -4 and b = -16.
Evaluate.
Now substitute this value of x into the given quadratic equation to find the value of the y-coordinate.
Evaluate.
The vertex is at (-2,5)
Here's the graph:
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