A passenger on a boat notices that there is a dolphin 3.4 yards below the boat. There is also a fish 1.2 yards below the boat. They also see a bird that is 1.2 yards above the boat.

Part A: Explain how you would create a number

Part B: What does zero represent on your number line?

Part C: Determine which two points are opposites, using absolute value. Be sure to show your work.