1.How do you know you have a direct variation in the
relationship between two quantities?


Answers

Answer 1

Answer:

Say you have y=2x. That is direct variation and will always pass through the origin when graphed. When x is multiplied by a number, the y value will also be changed by that number. If you add a y-intercept and change y=2x to, for example, y=2x+2, the x and the y will no longer be related by a constant ratio.

Step-by-step explanation:


Related Questions

Match the vocabulary terms to the correct definitions.

1. the set of second coordinates in a relation, all possible y values in a function
linear function
2. a function which has one or two variables with no powers, this functions’ graph will always be a straight line
domain
3. the set of first coordinates in a relation, all possible x values in a function
range
4. a function which contains an expression within absolute value symbols
absolute value function

Answers

Answer:

Linear Function - A function that has one or two variables with no powers, this graph will always be a straight line.  Domain - the set of second coordinates in a relation, all possible y values in a function .                           Range -    the set of first coordinates in a relation, all possible x values in a function . Absolute Value function - A function which contains an expression within absolute value symbols .                                                                                                                   Step-by-step explanation: To be honest i guessed so if theses are wrong i am sorry . I really just wanted to help .  

Linear Function - A function that has one or two variables with no powers, this graph will always be a straight line.  

Domain - the set of second coordinates in a relation, all possible y values in a function .                          

Range -    the set of first coordinates in a relation, all possible x values in a function . Absolute Value function -

A function which contains an expression within absolute value symbols .                                                                                                                  

Step-by-step explanation: To be honest i guessed so if theses are wrong i am sorry . I really just wanted to help .  

A person build a a scale model
Of a building using a scale in which 3
Inches represent 40feet the Heath of the building is 249
Feet what is the Heath of the scale model in inches

Answers

The answer is 83 because u have to divide 3/249 which =83

34=16+x helpppppp please due in 30 minutes

Answers

Answer:

34-16=18

so x = 18

Step-by-step explanation:

Answer:

x = 18

Step-by-step explanation:

Subtract 16 from both sides to get x by itself. 34 - 16 = 18. 18 = x

HELP PLEASE

Which graph best represents the equation y= 2x

Answers

Answer:

The answer is H.

Step-by-step explanation:

There is no "b" in this y = mx + b, so it has to go through zero, eliminating the bottom two. If we insert y = 2(1), the point should be at (1, 2), and if when looking at the possible answers, we can go with letter H.

I NEED HELP ✋!!!!!!!!!!!!!!!!!!!L!!!!!!!!!!!!

Answers

Helps me because I I’m dying

convert 1 1/2 ft. to inchs

Answers

18 inches................

If 7x−7y=4 is a true equation, what would be the value of
5(7x−7y)

Answers

Answer:

20

Step-by-step explanation:

Since that is a true equation, you can substitute 7x - 7 y for 4 and simplify.

5(7x - 7y)

5(4)

20

PLZ ANSWER QUICK IT WILL HELP A LOT!

Answers

Answer:

B

Step-by-step explanation:

u minus 197 equals 269

Answers

Answer:

466

Step-by-step explanation:

(as 'u' i think you mean a variable)

do the inverse operation,

269 + 197 = u

466 = u

answer is 466

466-197=269

What is the diameter of the circle 18in?​

Answers

56.57 that’s the answer

Pls help!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

16x - 9 is the expression

Step-by-step explanation:

2x + 2x = 4x co effecients with the same variables can be added then I multiplied 4x by 4x which would 16x then later got the expression (16x - 9).

16x-9 is the correct answer

I WILL MARK BRAINLIEST HELPPPP

Answers

Answer:

the 2nd one is 1,5

Step-by-step explanation:

the 3rd one is 8,5

You have a choice of two different Internet Service companies: AOL and Yahoo. One of AOL’s plans charges $19.99
for a month and a charge of $2.00 per hour. Yahoo’s similar plan offers service for only $14.99 a month and a charge
of $2.50 per hour. How many hours would you need to use the internet for the charges to be equal? What would the
monthly charge be?

Answers

First, you’re starting equation should look something like this:
19.99+2h= 14.99+2.50h
H equaling hours
You would then subtract 2h from 2.50h, so now you’re equation will look like this:
19.99=14.99+0.50h
Then, subtract 14.99 from 19.99. The equation should look like:
5=0.50h
Finally, divided 0.50h to 5 to get 10
10=h
You’re finally answer should be, It would take 10 hours for the Internet cost to be equal. The monthly charge would then be 39.99. You can find your answer by replacing h on either sides or your starting equation and insert 10.
~
If you have any further questions, feel free to ask!

Question is on the picture and thank you!

Answers

Answer:

j

Step-by-step explanation:

u need to multiply length x width for both then once you got your answer for both add them to get your answer

An apple watch that sold for $200 was on sale for $120.
What was the percent of discount?


Answers

The percentage of discount is 40%
There was a 40% discount

Beth and Kayla are selling flower bulbs for a school fundraiser. Customers can buy packages of tulip bulbs and bags of daffodil bulbs. Beth sold 7 packages of tulip bulbs and 9 bags of daffodil bulbs for a total of $269. Kayla sold 7 packages of tulip bulbs and 2 bags of daffodil bulbs for a total of $136. Find the cost each of one package of tulip bulbs and one bag of daffodil bulbs.

Answers

Answer:

the cost each of one package of tulip bulbs and one bag of daffodil bulbs is $14 and $19 respectively

Step-by-step explanation:

The computation of the cost of each of one tulip package bulbs and one bag of daffodil bulbs is shown below:

Let us assume the tulip bulbs be x

And, the daffodil bulbs be y

According to the question

7x + 9y = $269.........(1)

7x + 2y = $136..........(2)

Now subtract equation 2 from equation 1

7y = $133

y = $19

Now put the value of y in any of the above equation

7x + 9($19) = $269

7x = $269 - $171

x = $14

Hence, the cost each of one package of tulip bulbs and one bag of daffodil bulbs is $14 and $19 respectively

Im so not good at algebra

Answers

Answer:

No it is not

Step-by-step explanation:

You can tell if points can form a function if they have the same x value. If any 2 points have the same x value (The first value in the parenthesis before the comma), they cannot be a function.

Need help ASAP
Thanks+ BRAINLIST only for correct answers

Answers

Answer:

I think the answer is negative.

the answer is negative bc things ware off over time :) pls mark as brainliest

What numbers are included in the set of integers? What numbers are not included

Answers

The integers are the set of whole numbers and their opposites. Fractions and decimals are not included in the set of integers. For example, 2,5,0,−12,244,−15 and 8 are all integers.

Answer:

sample response: Integers are the set of whole numbers and their opposites. Fractions and decimals are not included in this set.

Step-by-step explanation:

1. SOCCER Suppose a youth soccer field has a
perimeter of 320 yards and its length measures 40
yards more than its width. Ms. Hughey asks her
players to determine the length and width of their
field. She gives them the following system of
equations to represent the situation. Use elimination to
solve the system to find the length and width of the
field.
2L + 2W=320
L - W = 40

Answers

Answer:

L = 100

W = 60

Step-by-step explanation:

2L + 2W = 320

-2L + 2W = -80

4W = 240

W = 60

L - W = 40

L - 60 = 40

L = 100

Need help ASAP please (60 points)

Answers

Answer:

what trade of the obstical?

Step-by-step explanation:

Find the distance from E to F

Answers

Answer/Step-by-step explanation:

To find the distance of E to F, subtract the distance of DE from the total.

28 - 11 = 17

EF = 17

My math teacher is strict. My previous math teachers was strict. What can you say about all math teachers?

Answers

Answer:

My math teacher is nice and they understand me when I didn't talk (which is everyday) but they didn't pressure me when I don't want to talk.

Step-by-step explanation:

Answer: so try to complement him or her everyday try to give them a best day for them not to be so stricked

Step-by-step explanation: Teachers are some of the most unsung heroes we have. ...

Here are some of the best compliments you can give to the teachers in your life.

Thank you. ...

We appreciate you. ...

You deserve a break. ...

Your sacrifices don't go unnoticed. ...

You've made a positive difference in my life. ...

I never forgot this one thing you said to me.

i'm sending a lot there 14 i've been sick

Answers

Answer:

linear

Step-by-step explanation:

feel better

Answer:

Linear is that y=ax

And a=slope=(y-y)/(x-x)

a=(3-1)/(1-0)=2/1=2

If it is linear then take point A(3,10) and replace it in the equation y=2x

Then 10 is not equal to 2(3) which is 6

Then the answer is nonlinear function

I hope it is clear now

Please help!!
Will mark brainliest

Answers

y=-2x+4.

-2 being m or the slope which you can count on the line -2/1
+4 being the y-intercept or b
answer
y=-2x+4
slope is -2
y= 4

If varies inversely as . It is known that = 10 when = 3, find the value of when = 5.

Answers

Answer:

y = 6

Step-by-step explanation:

If x varies inversely proportional as y.

[tex]x=\dfrac{k}{y}[/tex], k is constant of proportionality

or

k = xy

When x = 3 and y = 10

k = 3×10

k = 30

Put x = 5,

[tex]y=\dfrac{k}{x}\\\\y=\dfrac{30}{5}\\\\y=6[/tex]

So, the value of y is 6 when x is 5.

Determining the End Behavior of a Polynomial Function HELP ASAP !!!!

Answers

Answer:I think degree 4 but im not sure

Step-by-step explanation:

The price of a washing machine was decreased by 20% to £640.
What was the price before the decrease?

Answers

Answer:

£800

Step-by-step explanation:

Find 1% of the washing machine price using the percentage and the price of the washing machine after it decreased to help you.

100 - 20 = 80

80% = 640

1% = 640 ÷ 80 = 8

Now, since they asked the price before it decreased, they are asking for the full price.

100% = 8 x 100 = 800

(Final answer)

x – 3y 32
Does this inequality have a solid or dashed boundary line?

Answers

Step-by-step explanation:

It doesn't have neither the greater than or equal to or less than or equal to signs so

Unit 8 homework 2 special right triangles

Answers

what grade you in ? Because we can help eachother !!
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