To express the relationship between the cost of ice cream custard and its weight in ounces using a direct proportionality, you would use the equation:
\[ C = k \cdot w \]
Where:
- \( C \) is the cost,
- \( w \) is the weight in ounces,
- \( k \) is the constant of proportionality.
If the graph ranges from 0 to 15, this suggests that the maximum weight of ice cream custard is 15 ounces. To determine the constant of proportionality \( k \), we'd need to know either the cost of the ice cream custard at a particular weight (typically at full capacity near that 15-ounce mark) or another specific point on the graph.
For example, if the cost is $X at 15 ounces, then the constant \( k \) can be calculated as:
\[ k = \frac{C}{w} = \frac{X}{15} \]
Once \( k \) is determined, you can complete the equation \( C = k \cdot w \) for any weight in ounces between 0 and 15.
Please provide a specific cost corresponding to the weight or any more exact data for calculating \( k \).
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