Question

What is the solution set of x ∩ x ?

A. the empty set

B. all numbers except -3 and 5

C. all real numbers

D. the numbers between -3 and 5


2.
What is the solution set of x < 2U x ≥ 2?

A. all numbers less than -2 and greater than 2
B. all real numbers
C. the empty set
D. the numbers between -2 and 2

3.

Which of the following describes the graph of x ?

A. open circles on 1 and 2, line segment between
B. open circles on 1 and 2
C. open circles on 1 and 2, arrows pointing out
D. no solution

Answer 1

Your answers would be:

1.) A

2.) B

3.) A

Answer 2

• 1) A, 2) B, 3)A

Explanation:

#1

Intersection of the two given sets is the empty set as the sets cover two different intervals without common elements.

Correct choice is A

#2

Assume there is a union sign between sets.

The union of the two sets is both of them.

Correct choice is B

#3

Both the points are excluded, so both ends are open circles and the graph covers the interval between them.

Correct choice is A