Posted by Abbie on .
If 3 points are collinear the solve for t (3,3) (t,1) (8,6)

Math 
MathMate,
Let A(3,3), B(t,1), C(8,6) be the three points.
If they are collinear, the slope of line AB would be the same as the slope of line BC.
The slope m of a line between two points is given by
m = (y2y1)/(x2x1)
Equate mAB and mBC in terms of t.
Solve for t.