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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 average rainfall for each of six months is shown in the line graph.



Between which two consecutive months was the greatest increase in the average rainfall?
Between January and February
Betwenn March and April
Between April and May
Between May and June