Which is true about the functional relationship shown in the graph?
cost of apples
cost ($)
a 8 % 8 % 82% 88
weight (pounds)
a. the cost of the apples is a function of the type of apples.
o
b. the cost of the apples is a function of their weight
o
c. the weight of the apples is a function of the number of apples.
d. the weight of the apples is a function of their cost.