Question

write three solutions 2 X + 3 Y is equal to 12 and check whether the points are collinear​

Answer 1

How do you prove three points are collinear?

Three or more points are collinear, if slope of any two pairs of points is same. With three points A, B and C, three pairs of points can be formed, they are: AB, BC and AC. If Slope of AB = slope of BC = slope of AC, then A, B and C are collinear points.

How do you show that 4 points are collinear?

find the equation of line passing through two points by the formula.

y- y1=(y2 -y1) ( x - x1 ) / x2 - x1.

Where x1 , x2 and y2 ,y1 are given points.

If remaining third and fourth points satisfy the equation of line then 4 points are collinear.

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