Answer:
The graph will be discrete.
Step-by-step explanation:
There are 5 members from last year in the yearbook club.
Each day, an average of 3 additional members join.
Consequently, the total number of members increases by 3 each day.
This can be modeled using the equation:

The series of member counts forms the sequence: 5, 8, 11, 14, 17........
Thus, we conclude that the graph represents a discrete function since the number of members is whole and the booth operates once per day.