Mathematics: Applications and Interpretation · Topic 2: Functions

SL2.2 — Concept of a function

Mathematics: Applications and Interpretation · SL / HL · syllabus-mapped notes

1. AISL2.2.1

   Functions, domain and range

   A function maps each input to one output; notation $f(x)$, $v(t)$, $C(n)$, with domain (inputs) and range (outputs).

2. AISL2.2.2

   Inverse functions

   An inverse $f^{-1}$ undoes $f$, is a reflection in $y=x$, and exists for one-to-one functions.