Question 173677
38. Find the equation of the line through each given pair of points. Write the answer in standard form using only integers. 
(-1,-3), (2,-1)
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|x y +1|
|-1 -3 1| = 0
|+2 -1 1|

x*(-3 + 1) -y*(-1-2) + 1*(1+6) = 0
-2x +3y + 7 = 0
2x - 3y = 7