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January 29, 2015

January 29, 2015

Posted by **Abbie** on Wednesday, August 25, 2010 at 6:23pm.

- Math -
**MathMate**, Wednesday, August 25, 2010 at 7:26pmLet 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 = (y2-y1)/(x2-x1)

Equate mAB and mBC in terms of t.

Solve for t.

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