The line equation in slope-intercept form is , where m is the slope

and b is the y-intercept.

First find the slope of the line.

                           (Substitute )

                           (Apply additive identity property: )

                                 (Subtract: )

                                  (Divide: )

Next find the y-intercept.

The line crosses the y-axis at (0, 2).

So, y-intercept is 2.

Replace m with –4 and b with 2 in the equation.

The slope-intercept form of the line equation is .