Laurie is designing a type of candy dispenser for use at grocery stores. When pressure is applied to a lever by the customer, candy will fall into a container. As pressure on the lever increases, so will the amount of candy that is dispensed. For each pound per square inch of pressure placed on the lever, the amount of candy dispensed will triple. Which of the following does this situation represent?
A.
a relation only
B.
a function only
C.
neither a relation nor a function
D.
both a relation and a function