Identifying Functions
Completion requirements
A relation is a rule that describes a relationship between two variables. It can be represented in various ways: verbally, as a set of ordered pairs, as an equation, or as a graph on a coordinate plane. A function is a particular kind of relation. This lecture series discusses how to recognize functions when they are given by different representations. Watch the videos and complete the interactive exercises.
Evaluate functions from their graph - Questions
1. Find the output, 
, when the input, 
, is 
.
2. Find the output, , when the input, , is 
.
3. Find the output, , when the input, , is 
.
4. Find the output, , when the input, , is 
.
