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True or False?

When working with a function, substituting a certain value of $x$`x` into the formula gives only one value of $y$`y` for that value of $x$`x`.

True

A

False

B

Easy

Less than a minute

What is the name used to describe a graph where for some value of $x$`x`, there exists two or more different values of $y$`y`?

True or False?

A horizontal line can intersect the graph of a function at more than one point.

Consider the following statement:

All relations are functions.

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