Answer:
y=-2x+3
-2x=slope
3=y intercept
draw ur first point at (0,3) and then move two point down and one point to the right, (this means that the next point will be (1,1)), then go down two right one again (2,-1), keep doing this until u reach end of graph or get bored, then to do the other side go back to (0,3) and go up two left one (reverse of slope) to the point (-1,5) keep doing this until you reach the end or get bored.