Middle School
Carl sells snow cones at a baseball park. The graph shows the amount of ice used for the snow cones, in pounds, over a certain amount of time, in minutes.Which of the following describes the graph?Carl had 1 pound of ice after 2 minutes, used 8 pounds every minute for 4 minutes, and then used 3 pounds each minute for 6 minutes.Carl had 2 pounds of ice after 8 minutes, used 8 pounds every minute for 4 minutes, and then used one half pound each minute for 6 minutes.Carl had 4 pounds of ice after 1 minute, didn't use any ice for 4 minutes, and then used 2 pounds each minute for 6 minutes.Carl had 8 pounds of ice after 2 minutes, didn't use any ice for 4 minutes, and then used one half pound each minute for 6 minutes.
Which of the following sets of ordered pairs represents a function?A: {(4, 3), (2, 1), (2, 0), (0, 2), (0, 2)}B: {(5, 5), (5, 4), (5, 3), (5, 2), (3, 0)}C: {(4, 5), (4, 0), (3, 4), (0, 3), (3, 2)}D: {(6, 3), (4, 3), (3, 3), (2, 3), (0, 0)}