An outpatient clinic uses flexible budget graphs to illustrate its budgetary objectives. The clinic uses the number of patient visits as its activity level. In its most recent budget, the total budgeted costs line intersects the vertical axis at $40,000. At an activity level of 800 patient visits, a horizontal line drawn from the total budgeted costs line intersects the Y-axis at $90,000. What is the clinic's total fixed costs? $130,000 $50,000 O $40,000 O $90,000