The graph below shows the relationship between the number of pants sold and the cost. Choose two true statements.
A: The ordered pair (1, 9) represents the unit rate as cost per pair of pants.
B: The ordered pair (1, 18) represents the unit rate as cost per pair of pants.
A: The ordered pair (0,0) represents the fact that one pair of pants costs $0.
A: The ordered pair (0,0) represents the fact that zero pairs of pants costs $0.
