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I need help with this its due tomorrow

I need help with this its due tomorrow-example-1
User Krissie
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The equation of a line is y=mx+b

So m is the slope.

The slope is calculate by rise/run and b is the y intercept.

So in this case -2/2 is -1 for graph one and -20/20 is also -1 so the equation for both graphs are y=-1x+0 or y=-x
User Tehlexx
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