You can put this solution on YOUR website! Find the y values for the 3 x values given. These are the points you want to plot.
when x = 0, y is 4 (0,4)
when x = 2, y is 4-4 = 0 (2,0)
when x = 4, y = 4-8 = -4 (4,-4)
Not plot those three points and draw the line that connects them