Answer
3x+y = -5
Work Step by Step
Given (6,-3) , (8,-9)
Using slope formula
m =$\frac{y2-y1}{x2-x1}$ = $\frac{-9+3}{8-6}$ = $\frac{-6}{2}$ = -3
By point Slope formula
y - y1 = m (x-x1)
y-(-2)= -3(x-(-1))
y+2 =-3x -3
3x+y = -5
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