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OpenStudy (anonymous):
10. Find the axis of symmetry of the parabola formed by the following quadratic function: y = -5x2 + 7x - 9 A. x = -7/5 B. x = 7/5 C. x = -7/10 D. x = 7/10
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OpenStudy (anonymous):
the equation is x = -b/(2a). you know both a and b. Plug and chug
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