To determine the constant of proportionality in the context of the relationship between the cost of ice cream custard and its weight in ounces, you would need specific numerical data from the graph, particularly the cost and the weight at which this cost was measured.
The general form of the equation for direct proportionality is:
\[ \text{Cost} = k \times \text{Weight} \]
where \( k \) is the constant of proportionality.
If you have two points from the graph showing the cost (\( C \)) and weight in ounces (\( W \)), you can find \( k \) using the formula:
\[ k = \frac{C}{W} \]
If you provide the specific values from the graph (such as a given cost associated with its corresponding weight), I can help you calculate the constant of proportionality \( k \).
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