A) graph the following two lines on the same rectangular coordinate system. show all your working. you need to use the slope-intercept method. graph a: 3x+2y=12 graph b: 4x-y=5 b) mark the point intersection of the two graphs m, and give coordinates. c) what is the difference in units between the y-coordinates of graph a and y-coordinates of graph b? e) draw the graph x-=6 on the same set of axes. at which point does this line cut graph a?