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How do I find the secant line through two points?

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Mar 2, 2015

Given two points: $A (x_{A}, y_{A})$ $A(x_A,y_A)$ and $B (x_{B}, y_{B})$ $B(x_B,y_B)$ the line that passes through them is:

$\frac{y - y_{A}}{y_{B} - y_{A}} = \frac{x - x_{A}}{x_{B} - x_{A}}$ $(y-y_A)/(y_B-y_A)=(x-x_A)/(x_B-x_A)$ .

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