Exploring Domain and Range from Graphs

What is the vertical line test used for?

• To find the domain of a function

• To find the range of a function

• To determine if a graph is a function

• To determine if a graph is continuous

If a vertical line intersects a graph at more than one point, what can be concluded?

• The graph is continuous

• The graph does not represent a function

• The graph is discrete

• The graph represents a function

What does the domain of a function represent?

• How far left and right the function goes

• The set of all possible z-values

• How far up and down the function goes

• The set of all possible y-values

How is an open dot on a graph represented in interval notation?

• With a comma

• With a curly brace

• With a parenthesis

• With a square bracket

What does the range of a function represent?

• How far up and down the function goes

• How far left and right the function goes

• The set of all possible x-values

• The set of all possible z-values

In interval notation, how is infinity represented?

• With a square bracket

• With a parenthesis

• With a comma

• With a curly brace

If a graph passes the vertical line test, what can be concluded?

• The graph is a function

• The graph is discrete

• The graph is not a function

• The graph is continuous

What is the domain of a function that extends from negative infinity to positive infinity?

• All real numbers

• All positive numbers

• All negative numbers

• All integers

What is the range of a function that extends from negative infinity to positive infinity?

• All positive numbers

• All negative numbers

• All integers

• All real numbers

If a vertical line intersects a circle at two points, what can be concluded?

• The circle represents a function

• The circle is discrete

• The circle does not represent a function

• The circle is continuous