This is rise or run, y is the y intercept and x is the slope. since only x is showing the y intercept is 0. -4/5 is the fraction for the slope, so basically the top number (-4) is rise or fall (fall because it is negative) you count 4 down, the number on the bottom is (-5) which is run so you either go right or left, so it is negative so left. so you will have a point at 0 and in (-5,-4). hope this helps!!!