Graph the equation y=−x²−8x−15 on the accompanying set of axes. You must plot 5 points including the roots and the vertex.

Plot these points

(-3,0)

(-5,0)

(-4,1)

(-2,-3)

(-6,-3)

Step-by-step explanation:

Let find the zeros of the equation.

We can factor this equation.

Factor out the -1.

Factor using AC method

Set all the terms equal to zero.

So our x intercepts are -3,0 and -5,0.

To find our vertex, apply the -b/2a.

Then

Substitute-4 for x.

So our vertex is at (-4,1).

Find some other points like -2 and -6.

To find -2, substitute-2 into the quadratic.

So -2,-3.

Since y=-4 is the axis of symmetry

-6,-3

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step-by-step explanation:

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