Other
Mathn stuff.com: Vertical Line Test
Defines the vertical line test and provides a diagram showing graphs which pass and fail the test. Also provides several links for further information.
Cool Math
Coolmath: Horizontal and Vertical Lines
A short tutorial explaining the linear equations of horizontal and vertical lines.
Khan Academy
Khan Academy: Horizontal & Vertical Lines
Practice your knowledge of horizontal and vertical lines: their graphical presentation, their slopes, and their equations. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive...
CK-12 Foundation
Ck 12: Algebra: Horizontal and Vertical Line Graphs
[Free Registration/Login may be required to access all resource tools.] Write and graph lines of the form y = a constant value and x = a constant value.
CK-12 Foundation
Ck 12: Algebra: Horizontal and Vertical Line Graphs
[Free Registration/Login may be required to access all resource tools.] In this lesson students learn how to graph horizontal and vertical linear equations. Students watch videos, review guided notes and attempt practice problems.
Shodor Education Foundation
Shodor Interactivate: Lesson: Functions and the Vertical Line Test
This lesson plan outlines an activity that allows students to explore the vertical line test for functions.
Shmoop University
Shmoop: Basic Algebra: Graphing Horizontal and Vertical Lines
The tutorial discusses horizontal and vertical lines. Learners explore the concepts through notes and examples.
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Math Graphs
Houghton Mifflin: Math Graphs: Vertical Line Test 27 [Pdf]
The practice exercise uses a test to determine if any vertical lines intersect with a graph at more than one point. The resource consists of an enlarged printable version of a graph available in PDF format.
Math Graphs
Houghton Mifflin: Math Graphs: Vertical Line Test 28 [Pdf]
The practice exercise uses a test to determine if any vertical lines intersect with a graph at more than one point. The resource consists of an enlarged printable version of a graph available in PDF format.
Math Graphs
Houghton Mifflin: Math Graphs: Vertical Line Test 29 [Pdf]
The problem uses the vertical line test to see if a relation or its graph is a function or not. The practice exercise consists of an enlarged printable version of a graph available in PDF format.
Math Graphs
Houghton Mifflin: Math Graphs: Vertical Line Test 30 [Pdf]
The problem uses the vertical line test to see if a relation or its graph is a function or not. The practice exercise consists of an enlarged printable version of a graph available in PDF format.
Math Graphs
Houghton Mifflin: Math Graphs: Vertical Line Test 33 [Pdf]
Students determine if a graph is a function by moving a vertical line from one end of the x-axis to the other. The graph is available in PDF format.
Math Graphs
Houghton Mifflin: Math Graphs: Vertical Line Test 34 [Pdf]
Students determine if a graph is a function by moving a vertical line from one end of the x-axis to the other. The graph is available in PDF format.
Math Graphs
Houghton Mifflin: Math Graphs: Vertical Line Test 1 [Pdf]
Students use the vertical line test to determine whether y is a function of x. The resource consists of an enlarged printable version of a math graph available in PDF format.
Math Graphs
Houghton Mifflin: Math Graphs: Vertical Line Test 2 [Pdf]
Students use the vertical line test to determine whether y is a function of x. The resource consists of an enlarged printable version of a math graph available in PDF format.
Math Graphs
Houghton Mifflin: Math Graphs: Vertical Line Test 3 [Pdf]
Students use the vertical line test to determine whether y is a function of x. The resource consists of an enlarged printable version of a math graph available in PDF format.
Math Graphs
Houghton Mifflin: Math Graphs: Vertical Line Test 4 [Pdf]
Students use the vertical line test to determine whether y is a function of x. The resource consists of an enlarged printable version of a math graph available in PDF format.
Math Graphs
Houghton Mifflin: Math Graphs: Vertical Line Test 5 [Pdf]
The practice exercise explores the vertical line test. The example consists of an enlarged printable version of a math graph available in PDF format.
Math Graphs
Houghton Mifflin: Math Graphs: Vertical Line Test 6 [Pdf]
The practice exercise explores the vertical line test. The example consists of an enlarged printable version of a math graph available in PDF format.
Math Graphs
Houghton Mifflin: Math Graphs: Vertical Line Test 11 [Pdf]
Learners use the vertical line test to determine whether y is a function of x. The math graph is available in PDF format.
Math Graphs
Houghton Mifflin: Math Graphs: Vertical Line Test 12 [Pdf]
Learners use the vertical line test to determine whether y is a function of x. The math graph is available in PDF format.
Math Graphs
Houghton Mifflin: Math Graphs: Vertical Line Test 18 [Pdf]
The practice problem examines the vertical line test. The exercise consists of an enlarged printable version of the graph available in PDF format.
Math Graphs
Houghton Mifflin: Math Graphs: Vertical Line Test 19 [Pdf]
The practice problem examines the vertical line test. The exercise consists of an enlarged printable version of the graph available in PDF format.
Math Graphs
Houghton Mifflin: Math Graphs: Vertical Line Test 20 [Pdf]
The practice problem explores the vertical line test. The graph is available in PDF format.