The graph shows the total cost , in dollars, for a plumbing service that charges a flat fee plus an hourly rate. The -axis represents the number of hours the plumber works.
Which of the following statements best describes the meaning of the -intercept and the slope of the line?
The -intercept represents the hourly rate, and the slope represents the total cost for 0 hours.
The -intercept represents the flat fee, and the slope represents the hourly rate.
The -intercept represents the total cost for 1 hour, and the slope represents the flat fee.
The -intercept represents the maximum cost, and the slope represents the minimum hours worked.
