A gym offers three levels of membership based on the number of visits per month, as represented by the table.

\begin{tabular}{|c|c|c|}
\hline
\begin{tabular}{l}
Max Visits \\
Per Month
\end{tabular} & \begin{tabular}{c}
Cost Per \\
Visit (\[tex]$)
\end{tabular} & \begin{tabular}{c}
Monthly \\
Fee (\$[/tex])
\end{tabular} \\
\hline
12 & 5 & 15 \\
\hline
16 & 4 & 32 \\
\hline
24 & 3 & 42 \\
\hline
\end{tabular}

Kaleigh wants to know how much she will pay for her gym membership. Which graph represents the total monthly cost at the gym as a function of the number of visits Kaleigh plans to make each month?



Answer :

Certainly! Let's analyze the gym membership plans step by step to determine the total cost for different numbers of visits Kaleigh might make each month. We'll break down the cost calculation for various ranges according to the membership plan:

### Membership Plan Breakdown:
1. Plan 1:
- Maximum Visits: 12
- Cost Per Visit: [tex]$5 - Monthly Fee: $[/tex]15

2. Plan 2:
- Maximum Visits: 16
- Cost Per Visit: [tex]$4 - Monthly Fee: $[/tex]32

3. Plan 3:
- Maximum Visits: 24
- Cost Per Visit: [tex]$3 - Monthly Fee: $[/tex]42

### Calculating Total Monthly Cost:
We'll calculate the total monthly cost for different visit counts, ensuring the costs align with each plan's conditions.

1. 0 visits:
- Follows Plan 1: Total Cost = 0 * [tex]$5 + $[/tex]15 = [tex]$15 2. 5 visits: - Follows Plan 1: Total Cost = 5 $[/tex]5 + [tex]$15 = $[/tex]25 + [tex]$15 = $[/tex]40

3. 12 visits:
- Follows Plan 1: Total Cost = 12
[tex]$5 + $[/tex]15 = [tex]$60 + $[/tex]15 = [tex]$75 4. 15 visits: - Beyond Plan 1 but within Plan 2: Total Cost = 15 $[/tex]4 + [tex]$32 = $[/tex]60 + [tex]$32 = $[/tex]92

5. 16 visits:
- Follows Plan 2: Total Cost = 16
[tex]$4 + $[/tex]32 = [tex]$64 + $[/tex]32 = [tex]$96 6. 20 visits: - Beyond Plan 2 but within Plan 3: Total Cost = 20 $[/tex]3 + [tex]$42 = $[/tex]60 + [tex]$42 = $[/tex]102

7. 24 visits:
- Follows Plan 3: Total Cost = 24
[tex]$3 + $[/tex]42 = [tex]$72 + $[/tex]42 = [tex]$114 ### Summarized Results: Below are the total costs for the given visits: - 0 visits: $[/tex]15
- 5 visits: [tex]$40 - 12 visits: $[/tex]75
- 15 visits: [tex]$92 - 16 visits: $[/tex]96
- 20 visits: [tex]$102 - 24 visits: $[/tex]114

From the above calculations, a graph representing the total monthly cost as a function of the visits Kaleigh plans to make each month should accurately reflect these cost points. The y-axis would represent the cost, and the x-axis would represent the number of visits per month. The graph would show distinct linear segments with breakpoints at 12, 16, and 24 visits, reflecting transitions between different plans.