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13 November, 16:49

What is the value of k in the function f (x) = 112-kx if f (-3) = 121

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  1. 13 November, 17:02
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    F (-3) = 121=112-k (-3)

    121=112+3k

    minus 112 both sides

    9=3k

    divide by 3

    k=3
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