To determine the equation that represents the relationship between the plumber's fee \( y \) and the number of hours worked \( x \), we need to understand the components involved:
- There is a fixed amount paid for the house visit — this is a constant that will affect the intercept of the equation.
- The variable fee is determined by the number of hours worked at a certain rate.
The standard form of a linear equation is typically \( y = mx + b \), where:
- \( m \) is the slope (rate of payment per hour),
- \( b \) is the y-intercept (fixed amount for the house visit).
From your responses, it seems we have these options:
- \( y = 10x - 50 \)
- \( y = 50x - 10 \)
- \( y = 50x + 10 \)
- \( y = 10x + 50 \)
To choose the correct equation, you need to identify which pairing of the slope (rate per hour) and intercept (fixed visit fee) represents the situation.
- A positive slope would suggest that Anderson earns more as he works more hours, and the intercept would represent the fixed payment.
- If \( -50 \) or \( -10 \) is the intercept, that suggests a negative fixed fee, which is not reasonable for this context.
Based on these interpretations, if Anderson's total fee increases with hours worked and starts from a positive intercept, the best-fit option would be \( y = 10x + 50 \).
Please try checking this answer or let me know if you have any additional context that could help clarify!