Work Step by Step
$(1,-4)$ and $(2,-2)$ $m=(-4--2)/(1-2)$ $m=-2/-1=2$ $y=mx+b$ $-4=1*2+b$ $-4 = 2+b$ $-6 = b$ $y=2x-6$ $2x=y+6$ $2x-y=6$
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