Answer:
A number line with a closed circle on 9 and shading to the left
Step-by-step explanation:
we have
[tex]2(x+1)\geq 20[/tex]
Solve for x
[tex]2x+2\geq 20[/tex]
[tex]2x\geq 20-2[/tex]
[tex]2x\geq 18[/tex]
[tex]x\geq 18/2[/tex]
[tex]x\geq 9[/tex]
The solution is the interval ----> [9,∞)
All real numbers greater than or equal to 9
A number line with a closed circle on 9 and shading to the right