Task 2 Student Directions : Computer repair companies use a fixed cost equation to determine how much to charge for an in-house repair. For example , a technician charges $ 85 for a house call and $ 45 per hour. The fixed cost equation is y = 85 + 45x . a. How are the slope and y- intercept of the graph related to the equation? b. What is the rate of change in the equation? How is the rate of change related to the slope of the line represented by the equation? Explain.