y=-4x unit rate/constant/slope

8TH GRADE

Answers

Answer 1

9514 1404 393

Answer:

  -4

Step-by-step explanation:

In a linear equation, the terms "unit rate", "rate of change", "constant of proportionality", and "slope" all refer to the coefficient of x (the independent variable).

Here, the coefficient of x is -4.

The slope is -4.

_____

Additional comment

Strictly speaking the "constant of proportionality" only refers to the x-coefficient (k) when the equation is of the form ...

  y = kx . . . . . with no added constant

"Slope", "unit rate", and so on, can also refer to the x-coefficient (m) when the equation has a non-zero y-intercept (b):

  y = mx + b


Related Questions

Please help me with this

Answers

1 , 5
5

7
15

i think this is right

a supermarket has 129 crates of apples each crate holds 125 how many apples does the supermarket have

Answers

The answer would have to be 16,125.

Please help will give brainliest

Answers

Answer:

it's B 52

hope it helps. . ....

In what case does 8 + 8 = 4?
The correct answer, = 20 points and brainliest.
Please answer if you know the answer
Good luck!!!

Answers

Step-by-step explanation:

8:00 + 8:00 = 16:00 = 4:00PM

ASAP







Which equation best represents the relationship between the independent and dependent quantities in the table below?
x
3
6
9 12
2 3
y
0

Answers

Answer:

6 is the answer's answer answer

Hyperloop, a new model of travel, aims to reach a speed of 170 m/s. This is less than the speed of sound. What is the speed of sound?

(PLSSS I NEED THE ANSWER TO THIS ASAP TY)
:)

Answers

Answer:

The Speed of sound is 340 meters per second.

hope this helps!

If you wouldn't mind, would you be willing to give me brainliest?

Thank you and your welcome!

The record time for the girls' 50-meter free style swimming competition is 24.49 seconds. Camilla has been training and wants to swim the 50-meter free style in less time. What are some possible times Camilla would have to swim to break the current record? Solve this problem any way you choose.

Answers

Answer:

[tex]x < 24.49[/tex]

Step-by-step explanation:

Given

[tex]Record = 24.49[/tex]

Required

Possible time to break the record

Since no option is given to select from. I will answer the question using inequalities

For her to break the record, she must swim at a time less than 24.49.

i.e. 24.48, 24.00, 23, 22.50, etc...

Represent the time with x.

So, the inequality is:

[tex]x < 24.49[/tex]

PLSSS HELP MEE SHOW UR WORK!!

Answers

Answer:

(-3, 13)

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right  

Equality Properties

Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtraction Property of Equality

Algebra I

Terms/CoefficientsCoordinates (x, y)Solving systems of equations using substitution/elimination

Step-by-step explanation:

Step 1: Define Systems

y = -4x + 1

11y = x + 146

Step 2: Solve for x

Substitution

Substitute in y:                                                                                                  11(-4x + 1) = x + 146Distribute 11:                                                                                                      -44x + 11 = x + 146[Addition Property of Equality] Add 44x on both sides:                                11 = 45x + 146[Subtraction Property of Equality] Subtract 146 on both sides:                      -135 = 45x[Division Property of Equality] Divide 45 on both sides:                              -3 = xRewrite/Rearrange:                                                                                          x = -3

Step 3: Solve for y

Define original equation:                                                                                 y = -4x + 1Substitute in x:                                                                                                 y = -4(-3) + 1Multiply:                                                                                                           y = 12 + 1Add:                                                                                                                    y = 13

i rly rly need this its for a grade and i need help asap ! :(

Answers

Answer:

D!

Step-by-step explanation:

plugin the equation to each graph

D is the correct answer

I am stuck on this, can you help me?

Answers

Answer:

the gradient of the blue line is 3.

Step-by-step explanation:

Picking points (-3,5) and (0,-4) from the graph and using the gradient formula written below, we will find the gradient of the blue line.

[tex]\frac{y2-y1}{x2-x1}[/tex]

[tex]\frac{5+4}{0+3}[/tex]

[tex]\frac{9}{3}[/tex]

[tex]3[/tex]

Answer:

the gradient of the blue line is 3.

Step-by-step explanation:

How do i find a scale factor?

Answers

Answer:

In two similar geometric figures, the scale factor is the ratio of their corresponding sides, dividing the two corresponding lengths of the sides will gives the ratio, for example

What is the scale factor between 4 cm and 10 cm ?

4 and 10 are divisible by 2

Length A : 4 ÷ 2 = 2

Length B : 10 ÷ 2 = 5

so the scale factor from A to B is 2:5

79.2 is what percent of 110?

Answers

Answer:

72

Step-by-step explanation:

Answer:

75%

Step-by-step explanation:79.2 divided by 110 = 0.75. move the decimal two places and you get 75.

do you guys think my body is good for summer?

Answers

Answer: YES girl you should be proud

Step-by-step explanation:

Answer:

Yes

Step-by-step explanation:

body crazy curvy wavy

HELPPP MEEEEEEE
with this math

Answers

Answer:

it should be 1/8

Step-by-step explanation:

At a sleepover, three friends ate of a pizza for a
snack the next day, the friends ate of the leftover
pizza What fraction of the whole pizza was not eaten?

Answers

Answer:

none

Step-by-step explanation:

if they ate it all as leftovers then there was no pizza left uneaten

Plz, HELP me with this question!

Answers

Answer:

2/3

Step-by-step explanation:

There is a 2 in 3 chance the pointer will not land on c or d.

What is the surface area of the cylinder with height 6 mi and radius 3 mi? Round your answer to the nearest thousandth

Answers

Answer:

113.097

Step-by-step explanation:

this is the answer, also if so can i have brainliest

Answer: 169.646 mi^2

Step-by-step explanation:

2 last questions:
1.) You toss 5 dimes. What is the probability that at least two dimes land on tails?

2.) King Francis decided to divide up his kingdom among his sons. He gave his first son one-eight of the villages he ruled over and one more village. The king gave his second son one-ieth of the remaining villages and two more villages. He continued like this, until he gave his seventh and youngest son one-eight of the remaining villages and and seven more villages. After that, all the villages in the kingdom had been passed on to his children. How many total villages are there in the kingdom?

Answers

Problem 1

Answer:   26/32

-----------------------

Work Shown:

There are is 1 way to get 0 tails (aka 5 heads)

There are 5 ways to flip the coins so that exactly one coin shows tails and the rest are heads.

We have 1+5 = 6 ways of getting at most 1 tail. The phrasing "at most 1" means "1 is the largest number we can get".

There are 2^5 = 32 ways to flip five coins, so there are 32-6 = 26 ways of getting at least two tails. Note the events "getting at most 1 tail" and "getting at least 2 tails" are complementary events. One or the other must happen.

The probability of getting two or more tails is therefore 26/32.

========================================================

Problem 2

Answer: 56 total villages

-----------------------

Work Shown:

We'll work our way backwards starting with the last (7th) son

x = number of villages left before the 7th son gets his share

x/8 + 7 = number of villages the 7th son gets

x - (x/8+7) = 7x/8 - 7 = number of villages left after the 7th son gets his share

This amount should be 0, so,

7x/8 - 7 = 0

7x/8 = 7

7x = 7*8

7x = 56

x = 56/7

x = 8

There are 8 villages left before the 7th son gets his share; this means he gets x/8+7 = 8/8+7 = 1+7 = 8 villages. Or you can note that if there are 8 villages left, and he's the last in line, then he gets the remaining 8.

Plugging x = 8 into 7x/8 - 7 leads to 0.

----------

y = amount of villages left before the 6th son gets his share

y/8 + 6 = amount of villages the 6th son gets

y - (y/8+6) = 7y/8 - 6 = amount of villages left after 6th son gets his share

We match up the x = 8 found earlier with this new expression and we solve for y. This is because x represents the number of villages leftover after the 6th son gets his share. After the 6th son gets his share, that leftover x is then handled for the 7th son as discussed above.

7y/8 - 6 = x

7y/8 - 6 = 8

7y/8 = 14

7y = 14*8

7y = 112

y = 112/7

y = 16

There are 16 villages leftover before the 6th son gets his share.

This means the 6th son gets y/8 + 6 = 16/8 + 6 = 2+6 = 8 villages.

----------

z = amount of villages left before the 5th son gets his share

z/8 + 5 = amount of villages the 5th son gets

z - (z/8+5) = 7z/8 - 5 = amount of villages left after 5th son gets his share

You can probably spot the pattern by now. We'll follow the same idea as before. Set 7z/8-5 equal to the 16 villages and we get

7z/8-5 = y

7z/8-5 = 16

7z/8 = 16+5

7z/8 = 21

7z = 21*8

7z = 168

z = 168/7

z = 24

There are 24 villages before the 5th son gets his share.

He gets z/8 + 5 = 24/8 + 5 = 3 + 5 = 8 villages.

------------

I'll do one more iteration

w = amount of villages left before the 4th son gets his share

w/8 + 4 = amount of villages the 4th son gets

w - (w/8+4) = 7w/8 - 4 = amount of villages left after 4th son gets his share

Set that equal to the previous value 24 and solve for w

7w/8-4 = z

7w/8-4 = 24

7w/8 = 24+4

7w/8 = 28

7w = 28*8

7w = 224

w = 224/7

w = 32

There are 32 villages before the 4th son gets his share.

He gets w/8 + 4 = 32/8 + 4 = 4 + 4 = 8 villages.

------------

The rest of the steps to find the other village counts will follow this template. You should find that each son gets 8 villages. There are 7 sons, so that means there are 7*8 = 56 villages total.

------------

It makes sense that the answer is some multiple of 8 because when taking 1/8 of the value leads to an integer. In other words, (1/8)*x is an integer.

Furthermore, it also makes sense that each son gets a multiple of 8 villages because if let's say the first son gets 9 villages (some non-multiple of 8), then 56-9 = 47 is not a multiple of 8. Plugging that into x/8+2 for the second son will lead to some non-integer result. So it's a bit nice that everything is a multiple of 8.

A stronger verification is shown in the table below. The table keeps track of how many leftover villages there are for any given son, whether its before or after they get their share. At the top we start with 56 and then slowly make our way down to 0 villages.

Which of the following situations can be represented by
C = 10 + 0.44n?
Your answer:
A. The total cost at the grocery store for a cake that cost $10 and n bananas that cost $0.44 each.
B. The total cost of 10 soft drinks that cost $0.44 each.
C. The height of a plant after n days that was 10 centimeters tall and it grew 4.4 milimeters a day.
D. Not here

Answers

Answer:

A and C

Step-by-step explanation:

Stefan's city took a survey about a plan for a new park. Of the people surveyed, 2,800 liked the plan for the park and 1,200 did not. What percentage of the people surveyed liked the plan?

Answers

Answer:

70% of people surveyed liked the plan.

Step-by-step explanation:

Given that,

No. of people that liked the plan = 2,800

No. of people that did not like the plan = 1,200

We need to find what percentage of the people surveyed liked the plan. It can be given by :

[tex]\%=\dfrac{2800}{2800+1200}\times 100\\\\=70\%[/tex]

So, 70% of people surveyed liked the plan.

Order the sides of △DEF from shortest to longest

Answers

Don’t take my word for it, but I think it’s b

The ___________ are located on the chromosomes of a cell and contain information about traits.

A) Genes
B) Ribosomes

Answers

The answer is A) genes

27 POINTS!!!!!!!!!!!!! PLEASE!!!!

Answers

Answer:

       

Step-by-step explanation:

40% of 120 is what number?

Question 1 options:

A: 48

B: 3

C: 4,800

Answers

Answer:

48

Step-by-step explanation:

40% of 120

40  x     120   = 4800 / 100 = 48

100      

Answer:

A- 48

Step-by-step explanation:

You divide your percentage by 100. So, 40% would be 40 divided by 100 or . 40. Once you have the decimal version of your percentage, simply multiply it by the given number.

Melanie's car payment was $511 a month. She also paid $159 a month for insurance. How much does Melanie spend in 12 months on her car and insurance payments? Write an equation and then solve.

Answers

Answer:

$8040 spent on her car and insurance payments.

Step-by-step explanation:

511 + 159 = 670

670 times 12 = 8040

She spent $8040 on the car and the insurance payments

Yooo I rly need help with this plzzzzz

Answers

Answer:

The second option

Step-by-step explanation:

I hope this helps

A worker spent 3/4 of his monthly salary on food and 1/2 of the remainder on rent if he has 1500 left how much does he earn in a month ​

Answers

Answer:

$4000

Step-by-step explanation:

1500 × 2 =3000

3000 × ³/4 = 4000

Please help. Cesium-137 has a half-life of 30 years. Identify the amount of cesium-137 left from 150 milligram sample after 120 years.
1.325 mg
0.9375 mg
9.3750 mg
1.097 mg

Answers

Answer:

1.325 mg

have a good day :)

Answer:

9.3750 mg

Step-by-step explanation:

3y=4.8 (I'm so confused it isn't even funny)

Answers

Answer:

y = 1.6

Step-by-step explanation:

4.8/3=1.6

3*1.6=4.8

Answer:

[tex]y = 1.6[/tex]

Step-by-step explanation:

[tex]3y = 4.8[/tex]

Use inverse operations to solve this problem. Inverse operations is a method of solving a linear (and in some cases quadratic) equation. This method has one do the same operations to both sides such that it cancels out the operations done to the variable, and hence, it leaves one with the solution.

In this case, all one has to do is divide both sides by the coefficient of the varibale (y).

[tex]3y = 4.8[/tex]

÷[tex]3[/tex]

[tex]y = 1.6[/tex]

The weight of four puppys are shown in pound 9.5 9/38 9.125 9/34 which list shows these weights in order from gratest to lest

Answers

Answer: 9.5, 9.38, 9.34, 9.125

Step-by-step explanation: Decreasing numbers of value.

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