Question

14. [3.05]

Choose the relation with a domain of {−2, −1, 2, 4, 5}. (4 points)
R = {(–3, 5), (−6, 4), (−2, 2), (5, −2) (0, −1)}
R = {(–2, 1), (2, 2), (4, 5)}
R = {(5, –3), (4, −6), (2, −2), (−2, 5) (−1,0)}
R = {(5, 4), (2, 2), (1, –2)}
15. [3.05]

Choose the relation with a range of {−2, −1, 2, 4, 5}. (4 points)
R = {(–2, −1), (2, 2), (4, 5)}
R = {(5, 6), (–1, 3), (−2, 5), (4, 5), (2, 8)}
R = {(5, 4), (2, 2), (–1, −2)}
R = {(–3, 5), (−6, 4), (−2, 2), (5, −2) (0, −1)}

Answer 1

17. [3.06]

Given the function g(x) = 8x − 2, compare and contrast g(−2) and g(4). Choose the statement that is true concerning these two values. (4 points)
The value of g(–2) is larger than the value of g(4).
The value of g(–2) is the same as the value of g(4).
The value of g(–2) is smaller than the value of g(4).
The values of g(–2) and g(4) cannot be compared.
18. [3.06] If f(x) = 2x + 6, find f(7). (4 points)
14
15
20
6
19. [3.06]

If f(x) = −4x + 1, find f(−5). (4 points)
20
–19
21
–8
20. [3.06]

If g(x) = x2 − 2, find g(6). (4 points)
36
10
34
–2

Answer 2

Please help me.

Answer 3

1. [3.01]

Which of the following does not represent the set of negative integers from −10 to −1? (3 points)
{–10, −9, −8, −7, −6, −5, −4, −3, −2, −1}
{–10, −9, −8, −7, ...}
{–10, −9, −8, ..., −3, −2, −1}
{negative integers from –10 to −1}
2. [3.01]

Which of the following is a subset of the set?
A: {men between the ages of 25 and 35}. (3 points)
{women between the ages of 27 and 30}
{a 40 year-old-man}
{men between the ages of 30 and 35}
{men under 25 years}

Answer 4

4. [3.02]

If C = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12} and D = {numbers divisible by 3 from 1 to 12}, what is C ∩ D? (4 points)
{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12}
{3, 6}
{3, 6, 9, 12}
{ }
5. [3.02]

If A = {red, black} and B = {red, orange, yellow, green, blue, indigo, violet}, what is A B? (4 points)
{red, black}
{all colors except red and black}
{red, orange, yellow, green, blue, indigo, violet, black}
{ }
6. [3.02]


The set W represents the elements present in water.

W = {hydrogen, oxygen}

The set C represents the elements present in carbon dioxide gas.

C = {carbon, oxygen}

How many elements are in the set W ∩ C? (4 points)
1
2
3
4