A(5,1) B(8,2k) C(-2,-3)
Find k if points are collinear.
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use the formula for area of triangle;
1/2[x1 (y2-y3) +x2 (y3-y1)+x3 (y1-y2)= 0
hope it helps!
1/2[x1 (y2-y3) +x2 (y3-y1)+x3 (y1-y2)= 0
hope it helps!
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