Manufacturing Overhead Manufacturing Overhead (a) (b) $4,500 $4,500 $4,000 $4,000 $3,500 $3.000 $2,500 $2,000 $1,500 $1,000 Manufacturing Overhead $3,500 $3,000 $2,500 $2,000 $1,500 $1,000 $500 $500 So $0 0 2,000 4,000 6,000 8,000 10,000 0 2,000 Labor Hours (c) 4,000 Labor Hours 6,000 8,000 10,000 (d) $4,500 $4,000 $4,500 $4,000 $3,500 $3,000 $2,500 $2,000 $1,500 $1,000 Manufacturing Overhead $3,500 $3,000 $2,500 $2,000 $1,500 $1,000 $500 $500 $0 0 $0 2,000 4,000 6,000 Labor Hours 8,000 10,000 0 2,000 Which of the scattergraph plots above suggests a mixed cost relationship between direct labor-hours and manufacturing overhead? 4,000 6,000 8,000 10,000 Labor Hours