Question

show that (1,2) (3,4) (5,6) are collinear
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Answer 1

Answer:

Step-by-step explanation:

when the points are said to collinear their slope must be equal

Let A(1,2) B(3,4) C(5,6)

Slope = m = (y2-y1)/(x2-x1)

mAB = (4-2)/(3-1) => 2/2 => 1

mBC = (6-4)/(5-3) => 2/2 => 1

mAC = (6-2)/(5-1) => 4/4 => 1

Slopes are equal

Therefore they are collinear

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