+129840 The y intercept is at -1 = (0, -1)
Since the slope is 2.......this means thay y changes by 2 when x changes by 1.......so.......from (0, - 1),,,,,go up two units and over 1 unit........this will be the point (1, 1)
Connect (0, -1) and (1,1) with a straight line........there's your graph.....!!!
