Show that the points A(-3,2),B(1,-2) and C(5,2) or colinear points.
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Three points are said to be collinear if the area of triangle is 0
Area of triangle ABC = 0
1/2|x1(y2-y3) + x2(y3-y1) + x3(y1-y2)| = 0
1/2|(-3)(-2-2) + 1(2-2) + 5(2-(-2))| = 0
1/2| 12 + 0 + 20| = 0
16 is not equal to 0
The points are not collinear.
Check your question please.
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