Answer:
Step-by-step explanation:
This graph is digits going by eigths.
For 2 1/2, mark a dot right between the 2 and 3, on the fourth tick mark.
For -3/8, go left of 0 3 tick marks. (Right between 0 and -1).
For -1 3/4, go right of -2 by 2 tick marks. (Right between -2 and -1)