Question

(1,3),(2,2),(5,1) are collinear or not

Answer 1

hey

The points are not collinear as the area of the triangle is 1 sq units

use the formula

Area of triangle = 1/2 x1(y2-y3) + x2(y3-y1) + x3(y1-y2)

I think u got this question today in ur exam

Answer 2

Answer:

Step-by-step explanation:

if they are collinear AC=AB+ BC

From distance formula we get

AB=root 2

BC= root 10

AC=root 20

therefore they are not collinear