How To Find The Range of a Function

What is the range of a function? | Functions | Algebra I | Khan Academy

Domain and range of a function given a formula | Algebra II | Khan Academy

Finding Nemo - crab and gulls

How to find the square root of complex numbers| Worked example| Complex algebra

Graphing a Basic Function

Intro to Graphing Functions and Function Tables

How To Graph Equations - Linear, Quadratic, Cubic, Radical, & Rational Functions