Continuity at a point
Limits of combined & composite functions
Continuous functions
Intermediate value theorem
Review: Continuity
Continuity challenge
7 questions
About this unit
Continuous functions are, in essence, functions whose graphs can be drawn without lifting up your pen. This may sound simple, but this is in fact a very rich subject. Learn how continuity is defined using limits, and about a main property of all continuous functions -- the Intermediate value theorem.