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OpenStudy (keana):
What is the range of the graph of y = -2x^2 - 8x - 7? a: y ≥ 1 b: y ≤ 1 c: y ≤ -2 d: All real numbers
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OpenStudy (anonymous):
well, this is a quadratic equation with a=-2<0. So, this is a downward parapola. Next, we find the vertex x=-b/2a=-2. The range will be (-infinite, -2). C is a correct answer
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