C represents the total cost of the apples.
p represents the pounds of apples.
Cost is the function of the pounds of apple sold. "p" is the independent function and "C" is the dependent function.
The total cost of apples at the store is $ 1.75 per pound.
So, the cost equation is represented by C (p) = 1.75 p , meaning that total cost is the function of the apples sold.
