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Here is the graph of the cost equation $ C(x) = 4x + 5 $, where $ x $ represents the number of hours Dexter rents the bike. The graph shows a linear relationship, starting at $5 (the flat fee), with the cost increasing by $4 for every additional hour of rental.

Would you like further details or have any questions?

Here are some related questions to explore:
1. How much would Dexter pay if he rents the bike for 3 hours?
2. What is the interpretation of the slope in this context?
3. What happens to the total cost if the flat fee increases?
4. Can you calculate the cost for 7.5 hours of bike rental?
5. What other scenarios could be modeled using a similar linear equation?

**Tip:** In linear equations, the slope represents the rate of change, while the y-intercept represents a fixed starting value.

Dexter rents a bike for a flat fee of $5, plus $4 for every hour. What is the total cost if he rents the bike for 'x' hours?

Learn how to calculate the cost of renting a bike with the equation C(x) = 4x + 5, where x represents the number of hours Dexter rents the bike. This lesson covers linear equations, including slope and y-intercept, perfect for Grades 6-8 students.

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