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Gayanesargsyan77
how do you graph x+y=1
put it in slope intercept form. y=mx=b? you know m=-1 so y=-1x+1... so up one to the left one starting at 1. or down one to the right one, starting at one.
how do you know m = -1?
because m is the number before x, so if its -x its -1x