Find the equation of the line through the points A(-1,3) and B(0,2). Hence, show that the pointA,B and C (1,1) are collinear.
Slop of line AB=m=` (2-3)/(0-1(-1))=(-1)/1=-1`
Using the slope-point from, the equation of line Ab is given by
Now, slope of line` BC=(1-2)/(1-0)=-1/1=-1`
Since, slope of line Ab= slope of line BC, Point A, B and C are collinear.