Question

show that the points (1, 1),( 2, 2) and (3, 3 )are collinear​

Answer 1

Use the formula for are of triangle in coordinate geometry and if area becomes zero then it is collinear.

brainliest if satisfied

Answer 2

Hi mate here is ur query..

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Use the formullah area of triangle

½[y1(x2-x3)+y3(x3-x1)+y3(x1-x2)]

where x1=1 ,x2=2 ,x3=3

y1=1 ,y2=2 , y3=3

putting all value in given formullah

we find area = 0

that means lines are parallel or colinear

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Hope this will help you

Good luck!!!!