Question

How is the graph of y = -8x2 - 2 different from the graph of y = -8x2?

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A. It is shifted 2 units to the left.
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B. It is shifted 2 units to the right.
C. It is shifted 2 units up.
D. It is shifted 2 units down.

Answer 1

(Answer D)

Explanation:

Please use " ^ " to indicate exponentiation: y = -8x^2 - 2, y = -8x^2

The graph of y = -8x^2 is an inverted parabola with vertex at (0, 0).

That of y = -8x^2 - 2 is the same as above, except that the whole graph has been shifted 2 units down (Answer D).