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1 June, 07:44

Write the equation of a quadratic function with roots of - 4 and 8 and a y intercept of 3

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  1. 1 June, 09:48
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    f (x) = - 1/4 * (x+4) (x-8)

    Step-by-step explanation:

    f (x) = a (x+4) (x-8)

    y-int = 3 - -> (0,3)

    3 = a (0+4) (0-8)

    3 = - 12a

    a = - 1/4

    A: f (x) = - 1/4 * (x+4) (x-8)
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