Work Step by Step
$(-2,11)$ and $(6,3)$ $m= (11-3)/(-2-6)$ $m = 8/-8$ $m = -1$ $y=mx+b$ $3 = 6*-1+b$ $3 = -6 + b$ $9 = b$ $y=-x+9$ Let $y=0$ $y=-x+9$ $0=-x+9$ $x=9$
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