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Do you think it is necessary to perform the horizontal line test when finding the inverse of every function? Why?

User Ran Cohen
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Answer: Yes, it's necessary.

Step-by-step explanation: A horizontal line test's purpose is to check if whether the function has an inverse. Moreover, the horizontal line test also ensures if that inverse is a function.

If you're talking about a vertical line test, its purpose is to determine whether a curve on the graph represents a function. If the vertical line touches more than one point on the graph, then it is a function. An example is below.

Hopefully, this helps!

Do you think it is necessary to perform the horizontal line test when finding the-example-1
User Emaborsa
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