Question

Use interval notation to indicate all real numbers between and excluding -4 and 8​

Answer 1

`(-\infty,-4)\cup(8,\infty)`

Explanation:

All real numbers on its own in interval notation is
`(-\infty,\infty)`, but if we are to exclude -4 and 8, then we would need two separate intervals joined in union.

Thus,
`(-\infty,-4)\cup(8,\infty)` would be the correct notation