Graphing in Function Notation

Graphing functions

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Domain and Range

A function consists of:
-A set called the Domain (also called input)
-A set call the Range (also called output)

Remember that the Domain is represented by the X value
Remember that the Range is represented by the Y value

Input/Output Table

Do you recognize a pattern here? What would the last output value be? How would you write the equation for this function?

• Here is an example of the graph of a function.

• What would the function rule be for this example? (hint: it is multiplication)

• Another name for y in this example is f(x). This is said "f of x" which just means a function of x.

• In this function what would f(x) be if x=4?