write the set {x/ x< - 5 in interval notation

what is the correct interval

2 answers

{x: x< - 5} can be written in interval notation as:
(-∞,-5)
meaning from -infinity to -5, but excluding the two limits, namely -infinity and -5.
It is also equivalent to {x: -∞<x<-5}
Solve. Write the final answer in interval notation: vertical line x minus 5 vertical line space greater or equal than space 10