To determine the average price of one lemon in the summer from the described graph, you would first need to find the average price of the four-count bag of lemons for the summer season on the y-axis.
If the average price (as represented by the line on the graph for summer) is, for example, $8 for the four-count bag, then to find the average price of one lemon, you would divide this price by 4 (since there are four lemons in a bag):
\[ \text{Average price per lemon} = \frac{\text{Price of bag}}{4} \]
So, using the example value:
\[ \text{Average price per lemon} = \frac{8}{4} = 2 \]
However, since I don't have access to the actual graph, I cannot provide the specific value. You would need to look at the graph for the y-axis value for summer to perform this calculation.
If, hypothetically, the average bag price in the summer is not $8 but any other value (say $12), then you would calculate:
\[ \text{Average price per lemon} = \frac{12}{4} = 3 \]
Please check the graph for the specific price of the bag of lemons in summer and perform the division to find the answer.