At zero direct labor hours in a flexible budget graph, the total budgeted cost line intersects the vertical axis at $50000. At 10000 direct labor hours, a horizontal line drawn from the total budgeted cost line intersects the vertical axis at $90000. Fixed and variable costs may be expressed as: $40000 fixed plus $5.00 per direct labor hour variable. O $40000 fixed plus $4.00 per direct labor hour variable. O $50000 fixed plus $4.00 per direct labor hour variable. O $50000 fixed plus $9.00 per direct labor hour variable.