Which of the following describes the graph of {x | x ≤ 1} {x | x ≥ 4}?

closed circles on 1 and 4 with a line segment between
closed circles on 1 and 4 with arrows pointing outward
the entire number line
no solution

Answer :

x < = 1.......x > = 4

closed circles on 1 and 4.....arrows pointing outward

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