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Graphs: Function or Not A Function

Last updated over 3 years ago
7 questions
Note from the author:
A lecture and a short quiz about whether a graph is a function or not a function.
Study the materials I provided then answer the questions after.
Take a look at 9 different graphs, all of these graphs are function.
Here are some more examples of graphs that are functions.

VERTICAL LINE TEST

A graph is a function if one vertical line is drawn anywhere intersects the graph at exactly one point.

Take note of the definition of a vertical line test. You need to understand this to determine if a graph is a function or not.
The vertical line intersects the graph at excatly one point.
The vertical line intersects the graph at two different points.
Required
1

How many point/s of intersection/s? Answer in number.

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1

The graph is a function.

Required
1

The graph is a function.

Let us test your understanding of our lesson. Answer the following questions below. I know, you can do it!
Required
1

Which of the following is NOT a function?

Required
2

An ellipse is an example of a function.

Required
3

In your own words, describe a graph of a function. Support your answer with a drawing.

Required
4

Look around you and make a drawing that represents a function.