How do you find the domain and range of $y - 1x = 0$ ?

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Answer 1 · 2017-08-08T03:02:42

See a solution process below:

First, solve the equation for $y$ :

$y - 1x = 0$

$y - 1x + color(red)(1x) = 0 + color(red)(1x)$

$y - 0 = 1x$

$y = x$

Domain

There are no restrictions on what value we can use for $x$ .

Therefore the domain is the set of all real numbers or ${RR}$

Range

Because $y$ is always equal to $x$ , then $y$ , which is the Range has the same set of solutions as $x$ which is the Domain.

Therefore, the range is also the set of all real numbers or ${RR}$

How do you find the domain and range of y - 1x = 0y - 1x = 0?