Hello, Eraser147!

When dealing with inequalities like this: .

The problem states that I need to write the given set as an interval or a union of two intervals.

Are both these answers correct?

. . . . . .

Obviously, both of them cannot be correct.

Here is helpful rule.

We have an inequality with an absolute value.

If the inequality is "less than",

. . then isand .between

This is written: .

If the inequality is "greater than",

. . then is "" of and .outside

This is written: .