SOLUTION: Hello, I solved the following compound inequality, but I do not understand what the union symbol means in the interval notation at the bottom.
4n+8<3n-6 or 10n-8≥9+9n
n<-14
Question 1147112: Hello, I solved the following compound inequality, but I do not understand what the union symbol means in the interval notation at the bottom.
4n+8<3n-6 or 10n-8≥9+9n
n<-14 or n >= 17
n=( - ∞,-14)∪[17,∞) Found 2 solutions by ikleyn, Theo:Answer by ikleyn(52814) (Show Source): You can put this solution on YOUR website! .
The union symbol at the bottom means the union of the two sets, of the two semi-infinite intervals.