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What is Domain and Range of a Function?

Answer 1

First, let's define a function:
A function is a relationship between the #x# and #y# values, where each #x#-value or input has only one #y#-value or output .

Domain: all x-values or inputs that have an output of real #y#-values.

Range: the y-values or outputs of a function

For example,

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Answer 2

Ethan Adkins

The domain of a function is the set of all possible input values (x-values) for which the function is defined. The range of a function is the set of all possible output values (y-values) that the function can produce.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.