Answer:
B; (-4, -8)
Step-by-step explanation:
The given forms of the equation are standard form, vertex form, and intercept form.
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It is not surprising that the vertex form yields the vertex most quickly.
B) m(x) = 2(x +4)² -8
Compare this to the generic vertex form ...
f(x) = a(x -h)² +k . . . . . . . . . vertex (h, k)
We see that the vertex is (h, k) = (-4, -8).