Determine the ratio in which the line 3x + y-9 = 0 divides the line se – InterviewSolution

1.	Determine the ratio in which the line 3x + y-9 = 0 divides the line segment joining thepoints (1, 3) and (2, 7)9.
Answer» Let the line divides the points in k:1 ratio according to section formula (2k+1/k+1, 7k+3/k+1) = (x, y) It must satisfy the given equation so 3(2k+1/k+1) + (7k+3/k+1) = 96k+3+7k+3/k+1 = 913k+6=9k+913k-9k=9-64k=3k=3/4

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