If you are looking for the equation, then it would be y = -x+3
This is the same as y = -1x+3 which is in slope intercept form y = mx+b
m = -1 = slope
b = 3 = y intercept
If you want to graph this, then plot the points (0,3) and (1,2). Then draw a straight line through them both. Extend the line in both directions as much as possible.
So we notice that they increase by 1 each time first slot we have all of them so 4 choices=1st slot 3 choices=2nd slot (1 was taken for 1st slot) 2 choices 1 choice multiply 4 times 3 times 2 times 1=24 answe ris 24 ways