Question

Question 6 (Multiple Choice Worth 5 points)

[3.02] If A = {positive integers divisible by 2} and B = {integers}, what is A ∩ B?

{ }

{2, 4, 6, 8 …}

{2, 4, 6, 8, 10}

{1, 2, 3, 4, 5 …}

Question 7 (Multiple Choice Worth 5 points)

[3.03] If U = {positive integers} and subset M = {positive even integers}, what is M'?

{positive integers}

{2, 4, 6, 8, …}

{1, 3, 5, 7, …}

{ }
Question 8 (Multiple Choice Worth 5 points)

[3.03] If S = {positive integers} and subset T = {2, 4, 6, 8 …}, what is T'?

{2, 4, 6, 8 …}

{1, 2, 3, 4, …}

{positive odd integers}

{ }
Question 9 (Multiple Choice Worth 5 points)

[3.03] Let A = {7, 8, 9} and let B = {3, 4, 5, 6}. Find A X B.

{3, 4, 5, 6, 7, 8, 9}

{ }

{3, 4, 5, 6}

{(7, 3), (7, 4), (7, 5), (7, 6), (8, 3), (8, 4), (8, 5), (8, 6), (9, 3), (9, 4), (9, 5), (9, 6)}

Question 10 (Multiple Choice Worth 5 points)

[3.05] The domain of the following relation: R: {(−4, 8), (8, 10), (5, 4), (1, 6), (5, −9)} is

{8, 10, 4, 6, −9}

{−4, 1, 5, 8}

{−4, 8, 5, 1, 5}

No domain exists

Question 15 (Multiple Choice Worth 5 points)

[3.05] Given the function g(x) = −4x + 5, find g(−4).

−11

21

2.25

11
Question 16 (Multiple Choice Worth 5 points)

[3.06] If f(x) = 2x2 + 4, find f(3).

22

16

−0.5

40

Question 17 (Multiple Choice Worth 5 points)

[3.06] If h(x) = −5x − 10, find h(−2).

−20

1.6

−1

0

Question 18 (Multiple Choice Worth 5 points)

[3.06] Given the function f(x) = 2(x + 10), find x if f(x) = 24.

68

7

17

2

Question 19 (Multiple Choice Worth 5 points)

[3.06] Given the function f(x) = −2x + 8, find x if f(x) = 14

−20

36

−3

−11

Question 20 (Essay Worth 8 points)

[3.05] When looking at the graph of a relation, explain how to tell if the relation is a function.