Question

What is the domain and range of `y = 7/x`?

Answer 1

The only restriction to the domain is that `x!=0`

Explanation:

Since this is the only restriction to `x`, `y` may have any value.
So the range is `-oo < y<+ooand y!=0`
`x=0andy=0` are called asymptotes
graph{7/x [-32.47, 32.5, -16.23, 16.24]}