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24 November, 09:21

If the slope of line l is x, and the slope of line m is x+2, and l⊥ m, what is x?

+1
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  1. 24 November, 09:38
    0
    The answer to your question is: x = - 1

    Step-by-step explanation:

    Data

    slope of l = x

    slope of m = x + 2

    they are ⊥

    Process

    If they are ⊥, then, x + 2 = - 1/x

    x (x + 2) = - 1

    x² + 2x = - 1

    x² + 2x + 1 = 0

    (x + 1) ² = 0

    x + 1 = 0

    x = - 1
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