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Graphs: Function or Not A Function
By Cristy Cruz
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Last updated almost 4 years ago
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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.
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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.
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Text | 01:12
Text | 01:27
Question 1 | 01:54
Question 2 | 02:09
Question 3 | 02:33
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Question 2
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Question 3
02:33
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Let us test your understanding of our lesson. Answer the following questions below. I know, you can do it!
Question 4
4.
Which of the following is NOT a function?
Question 5
5.
An ellipse is an example of a function.
True
False
Question 6
6.
In your own words, describe a graph of a function. Support your answer with a drawing.
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View drawing
Question 7
7.
Look around you and make a drawing that represents a function.
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View drawing
The vertical line intersects the graph at excatly one point.
The vertical line intersects the graph at two different points.
Question 1
1.
How many point/s of intersection/s? Answer in number.
Question 2
2.
The graph is a function.
True
False
Question 3
3.
The graph is a function.
True
False
