The line equation in slope-intercept form is ,

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

Calculate the slope,

m = 

    =                         (Substitute )

    =                                (Multiply:)

    =                                   (Add:)

    =                                    (Divide:)­

The line crosses the y-axis at (0, -8). So the y-intercept is -8.

Substitute m = -3 and b = -8 in slope-intercept form line equation.

                               (Multiply:)   

The slope-intercept form of the line equation is .