Answer: 8 units
Step-by-step explanation:
The distance between these points is 8. Reasoning is, on a graph, -3 is 3 units away from 0, and then to get to 5, you must add 5 units onto the three units you've already moved.
Like so;
-3... -2... -1... 0... 1... 2... 3... 4... 5...
