Question

Monthly Cost of Gym Membership
Number of Months Cost ($)
1 74
2 99
3 124
4 149
The table below shows the cost for a gym membership at the local fitness center with an initial start-up fee charged in the first month. Find the slope, or monthly cost.
A. $49
B. $74
C. $25
D. $37.25

Answer 1

Slope = change in cost per month = 99 − 74 = 25 dollars per month.
Answer: C ($25).