To find the number of calories in 1 ounce of soda, we can look at the relationship shown in the graph, specifically the points plotted.
From the points given on the graph:
- (0, 0)
- (3, 36)
- (6, 72)
- (9, 108)
- (12, 144)
We can determine the number of calories per ounce by examining the change in calories with respect to the change in ounces.
From the point (3, 36), we see that 3 ounces corresponds to 36 calories. To find the calories per ounce, we can divide the calories by the ounces:
\[ \text{Calories per ounce} = \frac{36 \text{ calories}}{3 \text{ ounces}} = 12 \text{ calories per ounce} \]
Hence, there are 12 calories in 1 ounce of soda.