The following is a quiz to test your ability to use the definition of continuity to verify that various functions are continuous. You click on the circle next to the answer which you believe that is correct. After you have chosen the answer, click on the button Check Answers. You will then be told whether the answer is correct or not. Explanations are given when you click on the correct answer. There are a total of 75 problems; you will be given a score at the end of the 75th problem.

There are four groups of quizzes:

This page was originally written by Marek Szapiel.