Hence, we get that the numbers which are 10 units from 0 are:
10 and -10
<h3><u>Step-by-step explanation:</u></h3>
We are asked to find how many numbers are 10 units from 0 on the number line i.e. we have to find the numbers that are at a distance of 10 units from 0.
Hence, we know that both 10 and -10 on the number line are at a distance of 10 units from 0.
Also we could see that we have to find such a number 'a' such that:
|a-0|=10
i.e. |a|=10
i.e. a=±10
Hence, we get that the numbers which are 10 units from 0 are: