Find the coordinates of the vertex and the intercepts of the quadratic function. When necessary, approximate the x-intercepts to the nearest tenth.s(x) = -x2 - 18x - 72

A. V(-18, -72); I(0, -72); (-18, 0); (18, 0)
B. V(9, 9); I(0, -72); no x-intercepts
C. V(18, -72); I(0, 72); (12, 0); (6, 0)
D. V(-9, 9); I(0, -72); (-6, 0); (-12, 0)


Answer: D

Mathematics

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