HLT Practice

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Practice for Horizontal Line Test.

1 : Consider the following graph.

Does this graph represent a function?

Yes. No.

Remember that the Vertical line test tells you if a graph is likely to represent a function.

1.1 : Is this graph invertible?

Yes No

Recall that the Horizontal line test tells you if the graph is likely to be invertible.

2 : Consider the following graph.

Does this graph represent a function?

Yes. No.

Remember that the Vertical line test tells you if a graph is likely to represent a function.

2.1 : Is this graph invertible?

Yes No

Recall that the Horizontal line test tells you if the graph is likely to be invertible.

3 : Consider the following graph.

Does this graph represent a function?

Yes. No.

Remember that the Vertical line test tells you if a graph is likely to represent a function.

3.1 : Is this graph invertible?

Yes No

Although this may appear to have a horizontal segment near the origin, it in fact does not. This is a good example of why graphing can be misleading at times.

4 : Consider the following graph.

Does this graph represent a function?

Yes. No.

Remember that the Vertical line test tells you if a graph is likely to represent a function.

4.1 : Is this graph invertible?

Yes No

Recall that the Horizontal line test tells you if the graph is likely to be invertible.

5 : Consider the following graph.

Does this graph represent a function?

Yes. No.

Remember that the Vertical line test tells you if a graph is likely to represent a function.

5.1 : Is this graph invertible?

Yes No

Recall that the Horizontal line test tells you if the graph is likely to be invertible.

6 : Consider the following graph.

Does this graph represent a function?

Yes. No.

Although this may look like it has a vertical segment right near the origin, it in fact doesn’t. This is a good example of why graphing can be a bit misleading at times.

6.1 : Is this graph invertible?

Yes No

Recall that the Horizontal line test tells you if the graph is likely to be invertible.