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Which equation represents y = −x^2 − 10x − 20 in vertex form?

User Horns
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The vertex is (-5, 5) and the parabola opens downward. The vertex form equation is
.. y = -(x +5)^2 +5
Which equation represents y = −x^2 − 10x − 20 in vertex form?-example-1
User Abhishek Sachan
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