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Problem

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Textbook Expert
Textbook ExpertVerified Tutor
13 Oct 2021

Given information

The function is given by a following graph:

Step-by-step explanation

Step 1.

From the graph, can see that any horizontal line passes through only one point on the given curve. That is,

So different input values have different output values.

Hence the given function is one-to-one.

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