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26-03-2018
Mathematics

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Determine whether the graph of the quadratic function y = –x^2 – 10x + 1 opens upward or downward. Explain.

A. Because a > 0, the parabola opens upward.
B. Because a < 0, the parabola opens upward.
C. Because a < 0, the parabola opens downward.
D. Because a > 0, the parabola opens downward.

Respuesta :

MrGumby MrGumby

26-03-2018

C. If the first coefficient is negative, then the graph opens downwards

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