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
solniwko [45]
2 years ago
7

4. Which relation is a function?

Mathematics
1 answer:
postnew [5]2 years ago
8 0

<u>Answer:</u>

The last option choice [(1,3), (2,6), (3,9), (4,12)

<u>Step-by-step explanation:</u>

The key idea to understand in a function/relation is that each input can only have one output. Inputs are your x-variables and outputs are your y-variables.

In the first relation, you see the two points (3,4) and (3,5). 3 is your input [since its x] , however, it gives you two outputs [y's], 4 and 5. So you can cross out the first option.

In the second relation, look at the points (3,4) and (3,3). Again, both have the same input 3, but different outputs, 4 and 3. So you can cross out the second option.

In the third relation, look at all of the points. They all share a common input, 1, but different outputs, 2, 3, 4, and 5. So you can cross out the third option too.

Lastly, look at the last relation. They all have different inputs but the key thing to look at here is that each input only has one corresponding output. Thus, this is the right answer.

I hope this helps!

You might be interested in
Why is it important to describe the variable in an expression?
Korvikt [17]

Answer: They show numerical value. You have to make them clear.

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
PLEASE HELP. A cylinder has a radius of 3 feet and a height of 2.1 feet. What is the volume of the cylinder to the nearest tenth
Sergio039 [100]
I am pretty sure its d.

4 0
3 years ago
Read 2 more answers
Kelsey graphed the equation y = 3x + 1 as shown below.
USPshnik [31]

Answer:

D. Kelsey graphed the slope as the y-intercept and the y-intercept as the slope.

Step-by-step explanation:

The equation to graph was : y= 3x + 1 where the slope is 3 and the y-intercept is 1

However, Kelsey graph line passes through points (-3, 0)and (0, 3).From these points the equation of the line is;

m=Δy/Δx  where

m=the slope of the graph

Δy= 3-0 =3

Δx= 0--3 =3

m=3/3 = 1

The equation of the line should be;

m=Δy/Δx

1=y-3/x-0

1x= y-3

3+1x= y

y= 1x + 3 ----------where the slope is 1 and y-intercept is 3

So you can see here that in the original equation,<em> the slope m is 3 and y-intercept is 1 as shown in the first attached graph.</em>

While in the Kelsey's graph, <em>the slope is 1 and the y-intercept is 3 as in the second attached graph. </em>

<em>Thus, the correct answer is D : Kelsey graphed </em><u><em>the slope,3</em></u><em> as the </em><em>y-intercept </em><em>and the</em><u><em> y-intercept,1,</em></u><em> as the slope. </em>

Answer choice A is incorrect because Kelsey didnot graph the y-intercept, 1 on the x-axis but graphed point (-3,0) on the x-axis.

Answer choice B is incorrect because on Kelsey's equation the y-intercept is 3 and not -3. i.e. y=1x + 3

Answer choice C is incorrect because Kelsey graphed the slope as up 1 right 1 which is okay per the equation , y=1x+3.However, this incorrect because the correct graph has a slope of 3.

4 0
3 years ago
Read 2 more answers
Attention!
Bezzdna [24]

Answer:

ok

Step-by-step explanation:

ok

8 0
3 years ago
Read 2 more answers
The rhombus has vertices K(w, 0), M(w, v), and L(u, z). Which of the following could be coordinates of N?
Vitek1552 [10]

the answer would be the third choice which is N(0, z)

3 0
3 years ago
Read 2 more answers
Other questions:
  • There are 240 seventh graders at yorktown middle school. Two thirds of the student participate in after school activities how ma
    12·1 answer
  • Elizabeth is selling jam at a farmers market, and she earns $5.00 for each jar of jam that she sells. Her goal for the weekend i
    10·1 answer
  • Rate (R) = 25/3<br>Interest = Rs. 350<br>(d) Principal = Rs. 2400<br><br>Find the time (t) ​
    12·1 answer
  • The length of a rectangle is 3 more inches than its width. The area of
    15·2 answers
  • Select the linear equation represented in the graph.
    10·1 answer
  • There are (713)3 ⋅ 70 strawberries in a field. What is the total number of strawberries in the field?
    7·2 answers
  • Which is equivalent to 80% ?
    7·2 answers
  • Could someone answer the question with the photo linked below? Then explain how to solve it?
    6·1 answer
  • :14=15:21lololololol i have to put 20 characters lolol
    13·1 answer
  • Find the greatest common factor of 270 and 360. (Give the answer in the numerical form in the top box and in
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!