Diamond collector level 2 - geogebra exercise

mister mac
Construct 3 straight lines which pass through as many points (diamonds!) as possible. Give their equations along with the number of diamonds each line collects. You may use sliders to control 'm' (gradient) and 'c' (y-intercept) if you wish, but make sure you set the increment to 1, so that all your values of m and c are integers.