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:)

    =                                       (Divide:)­­

The line crosses the y-axis at (0,-24). So the y-intercept is -24.

Substitute m = and b = -24 in slope-intercept form line equation.

The slope-intercept form of the line equation is .