pie graph line graph scatterplot box-and-whisker plot
I gave my students this multiple choice question: A student wants to find the relationship between the diameter of several plastic disks and the circumference of each disk. Which of these types of graphs should be constructed to determine this relationship?

Only one answer is correct among these 4 choices:
- pie graph
- line graph
- scatterplot
- box-and-whisker plot

Could you tell me which one is correct?

line graph