A line passes through points A(xi, y0 and B(h, k). If the slope of the – InterviewSolution

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1.

A line passes through points A(xi, y0 and B(h, k). If the slope of the line is m, then show that k – y1 = m (h – x1).

Answer»

Given, A(x₁ , y₁ ), B(h, k) and slope of line AB = m

Slope of line AB = \(\frac {y_2-y_1}{x_2-x_1}\)

∴ m = \(\frac {k-y_1}{h-x_1}\)

∴ k – y₁ = m (h – x₁)

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