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19 October, 13:14

Use the quadratic model y=-4x^2-3x+4 to predict y if x equals 5.

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  1. 19 October, 13:29
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    y = - 111

    Step-by-step explanation:

    Substitute x = 5 into the quadratic for y

    y = - 4 (5) ² - 3 (5) + 4 = - 100 - 15 + 4 = - 111
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