The graph represents the relationship between the number of
rocks a child collects, r, over a number of weeks, w.
Which function can be used to determine the number of rocks, r, a
child will collect after w weeks?

A. R=1 over 15w +5
B. 15w+5
C. R= 1 over 5w+15
D.r=5w+15
The points are 0,15 and 10, 65