The vertex of the parabola in the day-plane above is (0, c). Which of the following is the tru about the parabola witg the equation y=-a (x-b) ^2+c?

A.) The vertex is (b, c) and the graph opens upward.

B.) the vertex is (b, c) and the graph opens downward.

C.) the vertex is (-b, c) and the graph opens upward.

D.) the vertex is (-b, c) and the graph opens downward.

Question

28 June, 23:35

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Answers (1)

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Boston Donaldson · Answer 1

y=-a (x-b) ^2+c has vertex (b, c)

because - a so the graph opens downward

Answer

B.) the vertex is (b, c) and the graph opens downward.