RETAIL A garden supply store manager found that if she used a certain function she could determine the price to charge for the shovels to maximize the store's revenue. The graph represents the revenue y of the store if the price per shovel is x dollars. Use the graph to find and
interpret the symmetry of the function in the context of the situation.
Revenue ($)
6000
5000
4000
3000
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1000
O
10 20 30 40 50 60 70 80
Cost per Shovel ($)
Symmetry: The graph is symmetric in the graph of x =
Interpret symmetry: The revenue gained when a shovel is sold for $20 is the same as it is when a shovel is sold for $