f x is 4 The roots of the equation f x 0 are 8 5 1 and 2 Which graph could be the graph of f x O 10 8 6 4 10 8 250 200 150 100 50 50 100 150 200 250 250 200 150 100 50 350 100 150 200 250 2 4 6 8 10 2 4 6 8 10 O 10 8 6 4 10 3 4 250 200 150 100 30 100 150 200 250 50 250 200 150 100 50 30 100 150 200 250 2 4 6 B 10 8 10 X