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 - Questions
Answers
To find the output,, we need to substitute
into the equation for
.
When the input is , the output is
.
To find the output, , we need to substitute
into the equation for
.
When the input is , the output is
.
To find the output, , we need to substitute
into the equation for
.
When the input is , the output is
.
To find the output, , we need to substitute
into the equation for
.