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Algebra I

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I am tying to determine whether the graph pairs below are parallel. x+12=y and y-x=-8. I have found the slope to x+12=y is 1. But I can't determine the slope for for y-x=-8. I am thinking maybe it is undefined, but I am not sure, since I am really new at this algebra. Any help would be appreciated. Thanks

  • Algebra I -

    The pairs should be parallel. y-x=-8 in slope intercept form ( y=mx+b) is y=x - 8. So the slope for y-x=-8 is 1 too.

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