To respond to your questions accurately, I would need to see the graph you mentioned, as it contains crucial information regarding Elizabeth's coffee bean costs and other variables. However, I can provide a general template you might use to fill in the blanks.
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On the graph, 60 represents (the total cost of coffee beans, the number of units produced, the average price per unit, etc.) which is Elizabeth's (fixed cost, total expenditure, production capacity, etc.).
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The rate of change on the graph is (positive, negative, constant, variable, etc.) which represents Elizabeth's (cost per unit, increase in costs, efficiency in sourcing beans, profit margin, etc.).
If you provide the specific data or descriptions from the graph, I can give you a more precise answer!