Question 1

What is the result of the union of the intervals -3, 1 and 1, 4?

Accepted Answer

-3, 4

Answer

1, 4

Answer

-3, 1

Answer

-3, 1, 4

Question 2

What do you get when you find the intersection of [2, 6] and 5, 8?

Accepted Answer

[5, 6]

Answer

[2, 5]

Answer

[6, 8]

Answer

[2, 8]

Question 3

What is the union of the intervals -5, -1 and -2, 3?

Accepted Answer

-5, 3

Answer

-5, -1

Answer

-2, 3

Answer

-5, -2

Question 4

What is the result when you subtract the interval [3, 5] from [0, 7]?

Accepted Answer

[0, 3) ∪ (5, 7]

Answer

[0, 5]

Answer

(0, 5)

Answer

(3, 7)

Question 5

What is the intersection of the intervals [-6, -2] and [-4, 1]?

Accepted Answer

[-4, -2]

Answer

[-2, 1]

Answer

[-6, 1]

Answer

[-6, -4]

Question 6

What is the union of the intervals 1, 5 and 5, 9?

Accepted Answer

1, 9

Answer

1, 5, 9

Answer

1, 5

Answer

5, 9

Question 7

What is the interval represented by -1, 2?

Accepted Answer

(-1, 2)

Answer

(-1, 2]

Answer

[-1, 2]

Answer

[-1, 2)

Question 8

What is the union of the intervals -7, -3 and -2, 2?

Accepted Answer

-7, 2

Answer

-2, 2

Answer

-7, -3

Answer

-3, 2

Question 9

What result do you get when you subtract the interval [0, 2] from the interval 1, 3?

Accepted Answer

(1, 2)

Answer

[0, 1)

Answer

(1, 3)

Answer

(2, 3)

Question 10

What is the intersection of [-4, 2] and [-6, -2]?

Accepted Answer

[-4, -2]

Answer

[-4, 2]

Answer

[-4, -6]

Answer

[-6, 2]

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