The price of lemons at a local grocery store is $7.25 per pound. Which function rule shows how the cost of lemons, y, depends on the number of pounds, x?

y = 7.25x

The function rule that shows how the cost of lemons, y, depends on the number of pounds, x, would be:

y = 7.25x

where "y" represents the cost of the lemons in dollars, and "x" represents the number of pounds of lemons.