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How to prove that three points are collinear by section formula?
Wiki User
∙ 10y ago
Let us understand this concept by taking three points A(2, 5), B(4, 6) and C (8, 8).
Now, we have to prove that the points A(2, 5), B(4, 6) and C (8, 8) are Collinear.
Let B divides AC in the ratiok: 1
Then the coordinates of B will be
But the coordinates of B are (4, 6)
Comparing we get
⇒8k + 2 = 4k + 4 are 8k + 5 = 6k+ 6
⇒8k - 4k = 4 - 2 are 8k - 6k= 6 - 5
⇒ 4k = 2 are 2k= 1
so here the value of k in both points are same so .....hope u get the answer
Wiki User
∙ 10y ago
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