Show that the points (3,-2) (-2,8) and (0.4) are collinear points.
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Answer:
A=(3,-2),B=(-2,8) C=(0,4)
(if three POINTS A B C are collinear then the slop of AB=BC)
slop of AB
Y2 -Y1÷X2-X1
8-(-2)÷-2-3
=8+2÷(-5)
= 10÷-5
= -2
slop of BC
4-8÷0--2
=4÷2
=2
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Answer:
Use the Area of a Triangle formula in co-ordination geometry.The set's are collinear
points
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