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A line passes through (x1, y1) and (h, k...

A line passes through `(x_1, y_1)` and `(h, k) .` If slope of the line is `m`, show that `k-y_1=m(h-x_1)`

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Slope, `m=y_2-y_1/x_2-x_1`
i.e, `m=k-y_1/h-x_1 , m(h-x_1)=k-y_1`
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