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Maths Exercices

Find points on a function graph

The graph shows the total cost C, in dollars, that a customer pays for n pounds of coffee from an online coffee merchant. The total cost includes a fixed fee for shipping.

How much does it cost to order 4 pounds of coffee?

From the graph, we see that the cost to order 4 pounds of coffee is $23.


The graph below displays the relationship between the number of burgers that are ordered at a fast food restaurant and the number of hot dogs are ordered.



Today, there were 25 hot dogs sold. How many burgers did the restaurant sell today?
15 burgers
25 burgers
35 burgers
45 burgers