Answer:
b. the symbol has or equal to
Step-by-step explanation:
Required
When does an inequality have a solid line
The question is pretty straightforward and the answer is (b) which means that when the symbol has or equal to.
This implies that, the symbol could be:
> or = i.e. ![\ge](https://tex.z-dn.net/?f=%5Cge)
and it could also be:
< or = i.e. ![\le](https://tex.z-dn.net/?f=%5Cle)
Take for instance:
and ![y- 5\le 10](https://tex.z-dn.net/?f=y-%205%5Cle%2010)
<em>The above expressions will have a solid line</em>