The Vertical Line Test
Skill:
Define and distinguish between relations and functions, dependent and independent variables, and domain and range; identify whether relations are functions numerically and graphically.
The Vertical Line Test
Identify what the vertical line test is and how it can be used in identifying functions.
Putting It All Together
Answer these open ended questions on your own or with others to form deeper math connections.
Open-ended question 1
How does the vertical line test help you identify a function?
Text and math input
Open-ended question 2
Would a horizontal line test also work to identify a function? Why or why not?
Text and math input
Explore more
Prerequisite Resources
More from Relations and Functions