Work Step by Step
We know that if the slope of a line is $m$ and it contains $P_1(x_1,y_1)$, then its equation is: $y-y_1=m(x-x_1).$ Hence here: $y-3=0.8(x-2)\\y-3=0.8x-1.6\\y-0.8x=1.4\\-4x+5y=7$
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