At zero direct labor hours in a flexible budget graph, the total budgeted cost line intersects the vertical axis at $30000. At 15000 direct labor hours, a horizontal line drawn from the total budgeted cost line intersects the vertical axis at $180000. Fixed and variable costs may be expressed as: $30000 fixed plus $12 per direct labor hour variable. $150000 fixed plus $2 per direct labor hour variable. O$150000 fixed plus $10 per direct labor hour variable O $30000 fixed plus $10 per direct labor hour variable