Find the coordinates of the vertex and x-intercepts for the quadratic function.f(x) = -x2 - 8x

A. vertex (4, -16)
intercept (-32, 0)
B. vertex (-4, -16)
x-intercept (-32, 0)
C. vertex (4, 16)
x-intercepts (0, 0), (8, 0)
D. vertex (-4, 16)
x-intercepts (0, 0), (-8, 0)


Answer: D

Mathematics

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A.  
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