1. 25. June Revision : FunctionsRevision begins with Functions! Recall all the basic terminologies, in particular range of a function - always approach this graphically, the small details will matter significantly! Also, we looked at Inverse Functions, including sketching them. In particular, do keep practising what we did with Composite Functions - what is the condition for one to exist, what is its domain and what process do we use to get its range? The extension question types are quite varied for this chapter, which makes it hard to score. We have identity functions, piecewise and periodic functions, among others. Aim to get very comfortable with piecewise functions at least, as these are often used in some other chapters as well.