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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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`:'` Line passes through `(x_(1),y_(1))` and `(h,k)`.
Slope of line ,`m=(k-y_(1))/(h-x_(1))`
`:.m(h-x_(1))=k-y_(1)`
There fore, `k-y_(1)=m(h-x_(1))`
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