Understanding Domain and Range of Functions

What is the domain of a function?

• The set of all possible input values (x-values).

• The set of all possible output values (y-values).

• The set of all positive values.

• The set of all negative values.

The range of a function is related to which axis on a graph?

• x-axis

• y-axis

• z-axis

• w-axis

Which of the following statements is true about the domain of a function?

• It is the set of all possible input values.

• It is the set of all possible output values.

• It is the set of all positive values.

• It is the set of all negative values.

Which of the following statements is true about the range of a function?

• It is the set of all possible input values.

• It is the set of all possible output values.

• It is the set of all positive values.

• It is the set of all negative values.

What does a parenthesis ( ) mean in interval notation?

• The endpoint is included

• The endpoint is not included

• The interval is infinite

• The interval is undefined

Which of the following is an example of an inequality for x between 1 and 5?

• 1 = x = 5

• 1 < x < 5

• 1 ≤ x ≤ 5

• 1 > x > 5

What is the purpose of using inequalities?

• To describe exact values

• To describe continuous ranges

• To describe discrete values

• To describe geometric shapes

What type of circle is used to represent "less than" in inequalities?

• Closed Circle

• Open Circle

• Half Circle

• No Circle

In the inequality x > 1, what type of circle is used on the number line?

• Closed Circle

• Open Circle

• Half Circle

• No Circle

What should you look at to determine the domain of a function from its graph?

• The y-values

• The x-values

• The slope

• The intercepts