Vertical Line Test Worksheet
Grade 10 Math worksheet covering the Vertical Line Test to identify functions from graphs.
Includes
Standards
Topics
Vertical Line Test Worksheet
Name:
Date:
Score:
Read each question carefully and follow the instructions. Use the Vertical Line Test to determine if each graph represents a function.
1. Which of the following statements correctly describes the Vertical Line Test?
If a vertical line intersects the graph at exactly one point, it is a function.
If a vertical line intersects the graph at more than one point, it is a function.
If a horizontal line intersects the graph at exactly one point, it is a function.
If a horizontal line intersects the graph at more than one point, it is a function.
Determine if each graph represents a function using the Vertical Line Test. Write 'Function' or 'Not a Function' in the space provided.
2.
3.
4.
5. A parabola opening upwards always represents a function.
True
False
6. A vertical line intersecting a graph at two points means the graph is not a function.
True
False
7. Explain in your own words why the Vertical Line Test works to identify functions.
8. Sketch the graph of x = y². Is this a function? Use the Vertical Line Test to justify your answer.