Ok i'll help you The equation it gives you can be put onto the graph the +5 and +6 at the end of them are where the line will cross on the y axis (vertical line) the 2x and 1/2x is it's gradient (steepness) for 2x every 1 you go across on the x axis starting from 0,5 you will go up 2 just keep plotting the points and then draw in the line it makes hope this makes sence