Posted by Jess on .
use interval notation to express the solution set of the inequality 2x + 3> or equal to 9

College algebra 
Reiny,
2x + 3 ≥ 9
then
2x+3 ≥ 9 OR 2x3 ≥ 9
2x ≥ 6 or 2 ≥ 12
x ≥ 3 or x ≤ 6
I will leave it up to you to put that in the interval notation. We used the above notation in my days.