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

A) closed circles on 1 and 4 with a line segment between
B) closed circles on 1 and 4 with arrows pointing outward
C) the entire number line
D) no solution

Question

Which of the following describes the graph of {x | x ≤ 1} U  {x | x ≥ 4}?

A) closed circles on 1 and 4 with a line segment between
B) closed circles on 1 and 4 with arrows pointing outward
C) the entire number line
D) no solution

valpey · Answer

Because this is Union, we are looking for x values which are either less than or equal to 1 or greater than or equal to 4. Note that numbers like 2 and 3 do not meet these criteria.

anonymous · Answer

- Soo what's the answer ??

valpey · Answer

Which of the offered solutions seems possible to you?

valpey · Answer

Is D possible? Or can you think of a number which is either less than or equal to 1 or greater than or equal to 4?

anonymous · Answer

|dw:1342077689020:dw|I think the answer should be 'B'