MAtch each integer with a point on the number line.
M N P Q
____________________________
-6-5-4-3-2-1 0 1 2 3 4 5 6
-3
5
1
-4
I'm not sure how the letters relate to the problem. However, if M = -3, then the M would be placed above the -3 on your line.
The same would occur with the other values.
I hope this helps. If not, please repost your question more clearly. Thanks for asking.