The graph of y = 1x passes through (0,0) and (1,1) and has the red line as its graph:The graph of y = 2x passes through (0,0) and (1,2) and has the green line as its graph: The graph of y = 3x passes through (0,0) and (1,3) and has the dark blue line as its graph: The graph of y = x passes through (0,0) and (2,1) and has the baby blue line as its graph: The graph of y = x passes through (0,0) and (3,1) and has the purple line as its graph: Edwin