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42 votes
42 votes
I just need to know the answer for question 10

I just need to know the answer for question 10-example-1
User Liang Xiao
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2.6k points

1 Answer

19 votes
19 votes

One of the arrow is on 4, it is closed and moving towards the right hand side, hence it is x ≥ 4

The other arrow is on -2, it is also closed but moving towards the left-hand side, hence it is x≤ -2

Therefore, x≤ -2 or x ≥ 4

User Neggenbe
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