Let:
C = Total cost
b = price for the shoe rentals = $15
g = Number of games
a = Price of each game = $4
a)
![\begin{gathered} C=ag+b \\ C=4g+15 \\ Where\colon \\ m=slope=4 \\ b=y-intercept=15_{} \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/high-school/z2kj76v6fy9lx5lhlie1booncxuo9ladr1.png)
b) Since:
![m=4>0](https://img.qammunity.org/2023/formulas/mathematics/high-school/t3xnqkq81mpzl29ya9qvcy1cvdqrq64yaz.png)
The slope represents an increase in cost.
c) The y-intercept represents the $15 cost up front
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Answer:
Blank 1:
![C=4g+15](https://img.qammunity.org/2023/formulas/mathematics/high-school/ypldh0jd6w52s84sdu188zds9hqw4eviyw.png)
Blank 2:
The slope represents an increase in cost.
Blank 3:
The y-intercept represents the $15 cost up front