Write a function to represent the set of ordered pairs.
{(2, 2), (3,7). (4, 14), (5,23)}
Answers
Answer:
Step-by-step explanation:
The set of ordered pairs {(1 , 7) , (−1 , 7) , (8 , −6) , (−3 , 2)} is a function
The set of ordered pairs {(4 , 7) , (−1 , 2) , (4 , −6) , (−3 , −2)} is not a
function
The set of ordered pairs {(3 , 7) , (−1 , 2) , (−4 , −2) , (−3 , −2)} is a function
The set of ordered pairs {(−3 , 7) , (1 , 2) , (4 ,−2) , (12,−4)} is a function
An ordered pair represents a relationship between two values
The first value is the input the second value is the output
1. A relation is a set of inputs and outputs
2. A function is a relation with one output for each input
3. All functions are relations
{(1 , 7) , (−1 , 7) , (8 , −6) , (−3 , 2)}
∵ Each x-coordinate in each ordered pair has only one y-coordinate
∴ The relation above is a function
The set of ordered pairs {(1 , 7) , (−1 , 7) , (8 , −6) , (−3 , 2)} is a function
{(4 , 7) , (−1 , 2) , (4 , −6) , (−3 , −2)}
∵ The x-coordinate 4 has two values of y (7 and -6)
∴ The relation above is not a function
The set of ordered pairs {(4 , 7) , (−1 , 2) , (4 , −6) , (−3 , −2)} is not a
function
{(3 , 7) , (−1 , 2) , (−4 , −2) , (−3 , −2)}
∵ Each x-coordinate in each ordered pair has only one y-coordinate
∴ The relation above is a function
The set of ordered pairs {(3 , 7) , (−1 , 2) , (−4 , −2) , (−3 , −2)} is a function
{(−3 , 7) , (1 , 2) , (4 ,−2) , (12,−4)}
∵ Each x-coordinate in each ordered pair has only one y-coordinate
∴ The relation above is a function
The set of ordered pairs {(−3 , 7) , (1 , 2) , (4 ,−2) , (12,−4)} is a function
Related Questions
A shape is shown on the centimetre grid below.
+
Work out the area of the shape
after it has been enlarged by
scale factor 2
State the units of your answer.
Answers
The area of the figure after dilation would be 20 square units.
What is scale factor? How it is used in Dilating coordinates?
Scale factor is used to compare 2 quantities, indicating by how much one quantity is greater than the other. It is denoted by K. Mathematically-
K = a/b.
If a coordinate point (x, y) is dilated by a scale factor of [k], then the coordinate point after dilation will be - (kx, ky).
Given is the 2 - D figure as shown.
Assume the length of each side as 1 units. Then after the dilation by K = 2, each side would be of 2 units. Then, the area of the figure would be -
A = 5(2 x 2) = 5 x 4 = 20 square units
Therefore, the area of the figure after dilation would be 20 square units
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Please Answer! - Image attached
Write the inequality shown by the graph below.
Answers
Answer:
18
Step-by-step explanation:
The points (-5,r) and (1,4) lie on a line with slope 3. Find the missing coordinate r.
Answers
Answer:
the missing coordinate of "r" equals -14. (-5,-14)
HELP ON THIS. (serious answers only) 10 points. Will mark you Brainliest if answered right.
Answers
i really need some help with these two questions
Answers
Answer:
See below.
Step-by-step explanation:
2. 2.5 pounds of coffee will cost 2.5 * 2 = $5
3. Lee earns $49.40 for 6.5 hours. 49.40 / 6.5 = $7.60/hour. For 25 hours, she earns 25 * 7.60 = $190.
Jose earns $3680 per month of which 22% is taken out his paycheck for federal and state income taxes and other required deductions. Last month he spent $775 for rent and $86.12 for clothing. What percent of his take-home pay did he spend on rent and clothing combined.
Answers
Answer: Jose earns $169.89
Step-by-step explanation:I’m still trying to learn the step by step
a car is moving with a velocity of 20 metre per second calculate the distance covered by the car in 10 seconds
Answers
Answer:
the answer is 200 because 20 time 5 is 100 the add it itself
Step-by-step explanation:
Answer:
200 meters per second
Step-by-step explanation:
multipy the mps put the number of seconds
What are these answers please help
Answers
Answer: if it is a positive number then it will always be a positive integer
Step-by-step explanation:
Andre wants to buy an iPod. He got $50 for his birthday, but the iPod he wants costs $230, so he’s going to have to save up the rest. His plan is to save $30 a month, after his birthday, until he has the money he needs. Let x be the time in months and y be the amount of money saved.
How much money does Andre have after 1 month?
$
30
What is the coordinate point used to represent this?
(
30
,
50
)
What is the slope in this situation?
$
Using the point from the information above, write the equation of this scenario in point-slope form. Do NOT include spaces in your answer.
How long will it take him to save up all the money he needs to buy the iPod ($230)?
It will take Andre
months to save the $230 he needs to buy the iPod.
Answers
Answer:I believe he will have 20$ left
Step-by-step explanation:
NEED THE ANSWER IN 23 MIN Paul wanted to know about how much time students in his school spent studying. From a list of student names, he chose a name at random from the list, and then every sixth student after that continuing through the list until he came back to the name he started with. Was Paul’s survey a random survey, and if so, which sampling method did he use? A. Yes, Paul used simple random sampling. B. Yes, Paul used systematic random sampling. C. Yes, Paul used stratified random sampling. D. No, Paul’s survey was not a random sample.
Answers
Answer:C
Step-by-step explanation:
Answer:
It is C. Yes, Paul used stratified random sampling.
Step-by-step explanation:
find the slope
y = -1+ 3x?
Answers
Answer:
the slope is 3
Step-by-step explanation:
Answer:
-1 because the slope is the m.
Step-by-step explanation:
y=mx+b
Please helppp! 6th math
What % of 440 is 286?
Answers
Answer:
65
Step-by-step explanation:
Hope it helps!!!
Answer:
286 is 65 % of 440
Step-by-step explanation:
line up your numbers with your procentage and cross multiply:
440 represents 100%
286 represents ? %
? *440=286 *100 divide both sides by 440
?= 286*100/440=65
two friends are trying to get the best deal on a streaming service for movies.john choose to sign up with soupstream streaming service,which requires a one-time signup fee of $20 and charge 50 cents per movie watched.his friend matt chooers modata streaming service, because it has no signup free.however, the modata service charges $3 per movie
Answers
Answer:
Pls complete the question
Step-by-step explanation:
Answer: how can I find the answer
Step-by-step explanation:
Susan’s science class is performing an experiment that involves dropping objects from various heights, starting close to the ground and working upward to 8 feet. The function , where x represents the distance from the ground, represents the time it takes for the object Susan drops to hit the ground. The graph represents the function
Identify some of the key features of the graph. That is, determine if the function is monotonically increasing or decreasing, state the end behavior, find the x- and y-intercepts, find the endpoint, and state the domain and the range of the graph (without considering the context).
Answers
Answer:
1) The function is monotonically increasing
2) The end behavior of the function is x tends to infinity as t(x) tends infinity
3) The x and y -intercept is (0, 0)
4) The endpoint is (0, 0)
5) The domain is 0 ≤ x ≤ +∞
The range is 0 ≤ t(x) ≤ +∞
Step-by-step explanation:
1) The given function of the time for the object to hit the ground is t(x) = 1/4·√x
Where;
x = The distance from the ground
t = The time it takes for the object to hit the ground
Monotonically increasing function, we have;
A function that is continuous on [a, b] and it can be differentiated in the domain, (a, b) is monotonically increasing when df(x)/dx > 0 for all values of x in (a, b)
However, where df(x)/dx < 0 for all values of x in (a, b), the function is decreasing
Therefore, using an online tool, we have;
dt(x)/dx = d(1/4·√x)/dx = 1/8 × 1/√x
Therefore, the dt(x)/dx > 0, for 0 < x < +∞ and the function is monotonically increasing
2) The end behavior of the function as x tends to infinity, t(x) = 1/4·√x approaches infinity
3) From the end behavior, and the nature, of the function t(x) = 1/4·√x, where both variables are directly proportional, we have that the x and y -intercept = (0, 0)
4) The endpoint is (0, 0) given that as t(x) tends to 0, x tends to 0
5) The domain is 0 ≤ x ≤ +∞
The range is 0 ≤ t(x) ≤ +∞.
Answer:
The function is monotonically increasing since the output values are continually getting larger. This also tells us that the end behavior of the function is infinity.
The x-intercept is (0,0), the y-intercept is (0,0), and the endpoint too is (0,0).
The domain of the graph is all values greater than or equal to 0, and the range is all positive output values.
Step-by-step explanation:
Which factor is missing from the equation?
33+ 63 =
(11+9 )
Answers
Answer:
96
Step-by-step explanation:
33 plus 63 equals 96
Have a nice day
Solve for k.
4(k + 18) = 92
k =
Answers
Answer:
k=5
Step-by-step explanation:
distribute 4 into the parenthesis
4k+72=92
subtract 72 from both sides
4k=20
divide both sides by 4
k=5
m
—-<-1 or -2+m>3
6
please explain when you do the work
Answers
Answer: -2 +m≥3
Step-by-step explanation:
Frank bought 3 pencils for $0.79 each, 2 notebooks for $3.29 each, and a comic book for $1.29. How much change will he receive from $20?
Group of answer choices
Answers
Answer:
$9.76
Step-by-step explanation:
3 x.79=2.37
2 x 3.29= 6.58
1.29 + 6.58 + 2.37 = 9.76
The elevation at sea level is 0 feet. Which of these cities have an elevation that is more than 75 feet away from sea level ?
Answers
Be my best frienddd Ill make BrainLess!
Which of the following organic compounds is the main source of energy for living things?
a.
carbohydrates
c.
nucleic acids
b.
lipids
d.
proteins
Answers
Answer:
A
Step-by-step explanation:
HOPE THIS HELPS :)
find the area and perimeter
Answers
Answer:
AREA=100
Step-by-step explanation:
Answer:
A=1200 P=25
Step-by-step explanation:
For area you do 5x4x6x10 for Perimeter you do 4+5+6+10
Which amounts of materials satisfy the relationship?
2 cubic yards of compost, 8 cubic yards of topsoil
4 cubic yards of compost, 5 cubic yards of topsoil
1 cubic yard of compost, 12 cubic yards of topsoil
3 cubic yards of compost, 12 cubic yards of topsoil
Answers
Answer:3
Step-by-step explanation:doing the quiz rn
Answer: 1 cubic yard of compost, 12 cubic yards of topsoil
Step-by-step explanation: Got it wrong for the answer and this one was right
Someone please help me!!!
Answers
Answer:
F
Step-by-step explanation:
2=9X7=1
Which type of worker tends to earn the highest pay in comparison to the others?
Answers
Answer:
A hired on worker? Or a determined worker?
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
It just is
I Give Brainliest
In the figure above, point B lies on AD. What is the value of 3x?
A) 18
B) 36
C) 54
D) 72
Answers
Answer:
54°
Step-by-step explanation:
We know that a flat line= 180° and ∠ABC is 90° which means 2x+2x+x=90°.
Therefore, 5x=90° so x=18°
18*3=54 so your answer is 54°
3x = 54°
The correct option is (C).
What are angles?An angle is a form of geometrical shape, that is constructed by joining two rays to each other at their end-points. The angle can also be represented by three letters of the shape that define the angle, with the middle letter being where the angle actually is (i.e.its vertex). Angles are generally represented by Greek letters such as θ, α, β, etc.
Given,
In the figure
∠CBA = 90°
and
∠CAB + ∠CBD = 180°
Putting the value by the given figure
90° + x + 2x + 2x = 180°
5x = 180° - 90°
5x = 90°
x = 90° / 5
x = 18°
⇒ 3x = 3 × 18°
⇒ 3x = 54°
Hence, the value of 3x = 54°
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What's the value of sec 60 degrees
Answers
Answer:
2
Step-by-step explanation:
[tex] \sec \: 60 \degree = 2[/tex]
Please help me!!
Determine whether the sequence of mapping rules will lead to the image being congruent to the pre-image (x, y) -> (x - 2, y)
No or yes if yes then is it a translation or reflection, if no then will it be small or with the size of the pre image be changed?
Answers
What is 1.224 divided by 1.02
Answers
Answer:
1.2 is the answer!!!!!!
Answer:
1.2
Step-by-step explanation:
You can easily divide
Plz mark me for brainliest
What is the measure of angle x
Answers
Answer:
X=67
Step-by-step explanation:
The angles of a triangle adds to 180
So x is 180-46-67=67
Answer:
21
Step-by-step explanation:
∠AHI + 67° = 180° (corresponding angles are equal)
∠AHI = 180° - 67°
∠AHI = 113°
x + ∠AHI + 46° = 180° (angle sum property of a triangle)
x + 113° + 46° = 180°
x + 159° = 180°
x = 180° - 159°
x = 21°
hope it helps you!
Anthony and Michelle have £65.25 between them. Anthony's amount is two thirds of Michelle's amount. How much money does each have?
Answers
Answer:
43.50
Step-by-step explanation:
MULTIPLE THE 2 NUMBERS
a. The amount of money that Anthony has is £26.1.
b. The amount of money that Michelle has is £39.15.
Let Anthony's amount be A.Let Michelle's amount be M.Given the following data:
Total amount = £65.25To find the amount of money each of them have:
In this exercise, we are required to translate the word problem into a mathematical (algebraic) expression and solve for the unknown variable (number):
Translating the word problem into an algebraic expression, we have;
Anthony's amount is two thirds of Michelle's amount:
[tex]A = \frac{2M}{3}[/tex] ....equation 1
Anthony and Michelle have £65.25 between them:
[tex]A+M=65.25[/tex] ...equation 2
Substituting eqn 2 into eqn 1, we have:
[tex]\frac{2M}{3} +M=65.25\\\\2M +3M =195.75\\\\5M = 195.75\\\\M= \frac{195.75}{5}[/tex]
M = £39.15
To find the value of A:
[tex]A = \frac{2M}{3}\\\\A = \frac{2\times39.15}{3}\\\\A = \frac{78.3}{3}[/tex]
A = £26.1
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