IXL - Domain and range of exponential functions: equations (Algebra 1 practice)

What is the domain of this exponential function?

{

}

{

}

{

}

{

}

all real numbers

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Learn with an example

question

What is the domain of this exponential function?

all real numbers

{

}

{

}

{

}

{

}

key idea

The domain of a function is the set of all possible
x
-values.
The range of a function is the set of all possible
y
-values.

For the exponential function

–

The domain is all real numbers.
The range is
{
y
|
y
>
k
}
if
a
> 0 or
{
y
|
y
<
k
}
if
a
< 0.

solution

The domain of this exponential function is all real

numbers,

since that is the domain of all exponential functions. This is true because the equation can be evaluated for all values of

For your reference, here's the graph of

Looking for more? Try these:

Lesson: Domain and range

Lesson: Exponential functions

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Not feeling ready yet? These can help:

M.2Domain and range of relations

Domain and range of exponential functions: graphs

Lesson: Domain and range

Lesson: Exponential functions

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