.

.

The line equation in slope-intercept form is ,

.

where m is the slope and b is the y-intercept.

.

First find the slope,

.

.

                             (Substitute )

.

                               (Subtract:)

.

­­                                 (Simplify)

.

.

.

The line crosses the y-axis at (0, 4). So the y-intercept is 4.

.

Substitute and b = 4 in slope-intercept form line equation.

.

.

 

.

The slope-intercept form of the line equation is

.