SOLUTION: explain how you fine the vertex and axis summary of the parabola for y=-2x^ -12x-16

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Question 1035639: explain how you fine the vertex and axis summary of the parabola for
y=-2x^ -12x-16
Found 2 solutions by josgarithmetic, MathTherapy:
Answer by josgarithmetic(39616) About Me  (Show Source):
You can put this solution on YOUR website!
Complete the Square to put into Standard Form, so you can directly read the vertex coordinates and the symmetry axis.

These will help in understanding:
Changing quadratic equation from General form into Standard Form - video----and there are a couple other videos on that channel which are also helpful
-
LESSON which includes how to Complete The Square

Watch the signs very carefully in handling your example equation.

Answer by MathTherapy(10551) About Me  (Show Source):
You can put this solution on YOUR website!

explain how you fine the vertex and axis summary of the parabola for
y=-2x^ -12x-16
y+=+2x%5E2+-+12x+-+16

f%28x%29+=+2x%5E2+-+12x+-+16

y+=+ax%5E2+%2B+bx+%2B+c ----- General form of a quadratic equation

The x-coordinate of the vertex, or the axis of symmetry occurs at x+=+-+b%2F%282a%29

The y-coordinate of the vertex occurs at: f%28-+b%2F%282a%29%29

The vertex is located at: