Question 269528
.


The plot by @Penguin is INCORRECT.


See my correct plot below.



-10........-9........-8........-7........-6........-5
<===================)----------->



Notice using the parenthesis &nbsp;" ) ", &nbsp;which defines the &nbsp;OPEN &nbsp;interval at the point &nbsp;-7,

which (point) &nbsp;IS &nbsp;NOT &nbsp;included to the solution set.