1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Oxana [17]
3 years ago
9

Which of the following relations are not functions? Select all that apply.  {(1, 3), (3, 7), (5, 11), (7, 15), (9, 19)}  {(1,

3), (1, 7), (5, 11), (5, 15), (9, 19)}  {(−2, 4), (−1, 1), (0, 0), (1, 1), (2, 4)}  {(2, 4), (1, 1), (0, 0), (1,−1), (2, −4)}  {(6, 3), (4, 1), (2, 1), (0,−1), (−2,−3)}  {(1, 3), (3, 7), (3, 11), (7, 15), (9, 19)}  {(1, 3), (3, 7), (5, 11), (9, 15), (9, 19)}
Mathematics
1 answer:
zavuch27 [327]3 years ago
8 0

Given:

7 relations are given.

To find:

The relation which is not a function.

Step-by-step explanation:

A relation is called function if there exist unique output for each input.

It means, each x-value has only one y-value.

{(1, 3), (3, 7), (5, 11), (7, 15), (9, 19)}, it is a function.

{(1, 3), (1, 7), (5, 11), (5, 15), (9, 19)}, it is not a function because there exist two y-values y=3 and y=7 at x=1.

{(−2, 4), (−1, 1), (0, 0), (1, 1), (2, 4)}, it is a function.

{(2, 4), (1, 1), (0, 0), (1,−1), (2, −4)},it is not a function because there exist two y-values y=4 and y=-4 at x=2.

{(6, 3), (4, 1), (2, 1), (0,−1), (−2,−3)}, it is a function.

{(1, 3), (3, 7), (3, 11), (7, 15), (9, 19)}, it is not a function because there exist two y-values y=7 and y=11 at x=3.

{(1, 3), (3, 7), (5, 11), (9, 15), (9, 19)}, it is not a function because there exist two y-values y=15 and y=19 at x=9.

Therefore, the correct options are 2, 4, 6 and 7.

You might be interested in
Of the men in the survey, what percent of them prefer movies? Write your answer as a percent and round to one decimal place.
andre [41]

Answer:

  • 40%

Step-by-step explanation:

There are 20 men and 8 of them prefer movies.

  • P = 8/20 = 0.4 = 40%
4 0
3 years ago
Sylvie folds a large piece of paper in half. The fold divides the paper into two equal parts. She folds it in half again. When s
Nikolay [14]
Each time you fold a paper it will double the amount of parts. When you think about it, it's just multiplying by 2 a bunch of times.

One fold is 2 times 1, which is 2.
The second fold is 2 times 2, which is 4.
The third fold is 4 times 2, which is 8.

Using this process, we can simplify that into exponents. If the amount of times you fold is x and the parts double for each fold, then the amount of parts can be represented by:

2^{x}

So if the amount of parts is given and we need the amount of folds, just keep doubling until you get to 64. The amount of times you doubled is the number of times Sylvie folded.

Later you will learn that the opposite of an exponent is a logarithm, which would look like this:

log_{2}(64) = ?

But don't worry about that yet.
6 0
3 years ago
A model giraffe has a scale of 1 in : 3 ft. If the model giraffe is 4 in tall, then how tall is the real giraffe
VladimirAG [237]
The answer is 12ft. Because if 1in is 3ft then 4in will be 4 multiplied by 3
4 0
3 years ago
Read 2 more answers
The manager of a supermarket wants to obtain information about the proportion of customers who dislike a new policy on cashing c
alex41 [277]

Answer:

n = 61 costumers

Step-by-step explanation:

For calculating the number of costumers he should sample we use the next equation:

n = \frac{z_{1-\alpha/2}^{2}p(1-p)}{E^{2} }

                          Where E is the error that we are prepared to accept, in this  case E = 0.15

How we don't know the value of p, we can estimate it like p = 0.5

∝ = 1-0.98 = 0.02

1-∝/2 = 0.99

z_{0.99} = 2.33

n = \frac{(2.33^{2})(0.5)(1-0.5)}{0.15^{2} }

n = 60.32 costumers

n ≈ 61 costumers

4 0
3 years ago
What are 3 isosceles triangles?​
Maslowich
The answer is acute, right, and ontuse
6 0
2 years ago
Other questions:
  • F(x)=5x-4<br> Thanks for your help in advance!
    9·2 answers
  • How does each multiplication compare to its corresponding division problem
    9·1 answer
  • 20 yards 8 inches is divided into 26 equal sections, how long is each section
    10·1 answer
  • 11) 5(b - 1)<br> Solve it
    10·1 answer
  • Sin(-x)=-sinx for all values x​
    9·2 answers
  • 3. A recipe for banana bread calls for 0.5 cup of vegetable oil. If the baker
    12·1 answer
  • Graph the system below and write its solution<br><br>(2x+y=-4<br>(y=-1/2x+2​
    10·1 answer
  • Sophie spends a winter day recording the temperature once every three hours for science class. At 9 am, the temperature was -8.6
    6·2 answers
  • Write an equation that represents the line
    9·2 answers
  • Solve for x
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!