Finding Domain and Range Using Interval Notation

What is the domain of a function?

• The set of possible x values

• The set of possible f(x) values

• The set of possible z values

• The set of possible y values

What is the range of a function?

• The set of possible f(z) values

• The set of possible x values

• The set of possible z values

• The set of possible y values

In the first example, what is the domain of the function?

• (2, 6]

• [2, 6)

• (2, 6)

• [2, 6]

In the first example, what is the range of the function?

• (-6, -2)

• [-6, -2]

• [-6, -2)

• (-6, -2]

In the second example, what is the domain of the function?

• [-5, 3]

• [-5, 3)

• (-5, 3]

• (-5, 3)

In the second example, what is the range of the function?

• [0, 2]

• (0, 2]

• (0, 2)

• [0, 2)

In the third example, what is the domain of the function?

• [-3, 2)

• (-3, 2]

• (-3, 2)

• [-3, 2]

In the third example, what is the range of the function?

• (-5, 4)

• [-5, 4)

• (-5, 4]

• [-5, 4]

What is the highest value the function reaches in the third example?

• 6

• 5

• 4

• 2

What should you remember about range inclusion?

• It must exclude at least one endpoint

• It must include at least one endpoint

• It must exclude both endpoints

• It must include both endpoints