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25 May, 11:32

F (x) = x 3 - x 2 - 9 x + 9 is this a function?

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  1. 25 May, 11:54
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    Yes.

    Step-by-step explanation:

    Yes this is a linear equation.

    First we need to simplify the equation down. We can do this by working through all the indicated subtractions shown in this equation.

    3x - 2x - 9x = - 8x

    f (x) = - 8x + 9

    This is a linear equation. Check your work on a graphing calculator.
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