# How do you find the domain and range of #f(x)=3x+2#?

##### 1 Answer

Both domain and range are every real number

#### Explanation:

The domain is every value of

When doing this we usually make sure to keep to the real numbers, and just check for values that will make the function "break", e.g.: will make us divide by zero, have a negative number under a root, have a zero or negative number in a logarithm, etc.

Lines like this, can take every value of

The range is every value of

Once more, lines can output every number between negative infinity and infinity, so the range is the same as the domain in this case