How do I do a horizontal number line to represent the set of even negative numbers from - 9 to - 1

Here's what I get.

Step-by-step explanation:

Even numbers are numbers that you can divide by 2, like 2, 4, 6, and 8.

Negative numbers like - 2, - 4, - 6, and - 8 are also even numbers, because you can divide them by 2.

So, draw a horizontal number line that runs from - 9 to - 1.

Neither - 9 nor - 1 is an even number, so highlight with a marker all the even numbers between - 9 and - 1. Erase all the remaining numbers.

You now have a horizontal number line representing the set of even negative numbers from - 9 to - 1.

It should look something like the diagram below.