How do you find the domain and range of y = 1/x+4?

Aug 25, 2017

Domain: $x$ does not equal $0$
Range: $y$ does not equal $4$

Explanation:

To find the domain, ask "What can or can't $x$ equal?"

In this case, $x$ can equal anything but zero, since you can't divide by zero.

To find the range, we can simply say that since x can equal anything but zero, $\frac{1}{x}$ equals everything but zero.

Therefore, the range is $y$ does not equal 4.