Which graph represents the function f x x O 10 8 6 4 100 80 60 40 20 20 40 60 80 100 100 80H 60 40 20 10 8 6 4 20 2 4 40 60 80 100 2 4 6 6 8 10 8 10 X 14r3 612 84x 36 100 80 60 40 20 10 8 6 4 2 320 40 60 80 100 y 100 80 60 40 20 10 8 6 4 20 40 60 80H 1004 k 2 4 6 4 6 8 8 10 X 10