What's the Vertical Line Test?

What's the Vertical Line Test?

Note:

Even graphs need to worry about tests! Using the vertical line test, you can figure out if a graph is a function or not. Watch this tutorial and learn about the vertical line test. Then, put your graphs to the test!

Keywords:

  • definition
  • vertical line test
  • function
  • vertical line
  • test
  • one to one

Background Tutorials

  • Determine the slope of a line given a table of values, a graph, two points on the line, and an equation written in various forms, including y = mx + b, ax + by = c, and y - y1 = m(x - x1)

      • How Do You Graph a Linear Equation by Making a Table?How Do You Graph a Linear Equation by Making a Table?

      How Do You Graph a Linear Equation by Making a Table?

      Graphing a function? It would be really helpful if you had a table of values that fit your equation. You could plot those values on a coordinate plane and connect the point to make your graph. See it all in this tutorial!

Further Exploration

  • Determine the slope of a line given a table of values, a graph, two points on the line, and an equation written in various forms, including y = mx + b, ax + by = c, and y - y1 = m(x - x1)

      • What's a Function?What's a Function?

      What's a Function?

      You can't go through algebra without learning about functions. This tutorial shows you a great approach to thinking about functions! Learn the definition of a function and see the different ways functions can be represented. Take a look!