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Math Help - x-intercept

  1. #1
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    x-intercept

    i need to know how to find x-intercept for
    y=-100+7.5x
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  2. #2
    Senior Member Pinkk's Avatar
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    Uptown Manhattan, NY, USA
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    To find the x-intercept, set y=0.

    0=-100+7.5x

    100=7.5x

    x=\frac{40}{3}=13.\bar{3}
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