The graph shows the membership of a student group: x represents the number of years since the group was formed and y represents the number of members.
A graph has years since group formed on the x-axis, and number of members on the y-axis. A line goes through points (2, 38) and (5, 80).
The equation is y = 14x + 10.

Which is true regarding the slope?
A. Membership grows by 14 each year.
B. The group was formed with 14 members.
C. Membership is recorded every 14 years