Answer:
My answer may not be accurate, but try (-4, 2)
I recommend using Khan Academy if you still don't understand the concept. (no shame btw)
Step-by-step explanation:
Here is a thorough explanation.
Interval notation is a way of writing subsets of the real number line . A closed interval is one that includes its endpoints: for example, the set {x | −3≤x≤1} . To write this interval in interval notation, we use closed brackets [ ]: [−3,1]
