The point-slope form line equation is , where m is the slope

and is the any point on the line.

First find the slope

         (Substitute and )

                (Product of two same signs is positive)

                        (Add: )

To write the line equation, we can use either of the two given points.

Consider the point.

Substitute m& in point - slope form.

            (Product of two same signs is positive)

The point-slope form line equation is .