The line equation of standard form is  , where A>0 & A, B,C are integers.

              (Substitute and)

                         (Product of two same signs is positive)

                    (Additive inverse property: )

                                    (Add: )

                                      (Divide: )

For the Line equation,

Substituting Slope m   &  in point–slope form.

           (Product of two same signs is positive)

    (Distributive property: )    

                      (Multiply: )

Rewriting the above equation in standard form,

          (Subtract 2 from both sides)     

                 (Additive inverse property: )

The line equation in standard form is .