Question

(7,-2),(5,1),(3,4) Colinear or not

Answer 1

Answer:

These points are collinear.

Explanation:

Let these points be represented by A(7,-2),B(5,1),C(3,4).

Area of ∆ABC=1/2|7(1-4)+5(4+2)+3(-2-1)|

= 1/2|-21+30-9|=0 sq unit.

Since the area of the triangle is 0 these points are collinear.

Answer 2

Answer:

The area of these triancles is 0 .So it is collinear.

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