3 years ago

What are the coordinates of the vertex of y=-x^2-8x+2?

1 answer:

7 0

The vertex is when x=-b/2a
in this case, b=-8, a=-1, so x=-(-8)/2(-1)=-4
when x=-4, y=-(-4)²-8(-4)+2=18
so the answer is B.

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3 years ago

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pogonyaev

Hello :
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