The cost of a service call to fix a washing machine can be expressed by the linear function Y = 45% +35, where y represents the total cost and x represents the number of hours it takes to fix the machine. What does the slope represent? O the cost for each hour it takes to repair the machine O the cost for coming to look at the machine o the total cost for fixing the washing machine O the amount of time that it takes to arrive at the home to make the repairs