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Sergio039 [100]
3 years ago
5

Which representation has a constant of variation of -2.5

Mathematics
2 answers:
omeli [17]3 years ago
8 0

Answer:

A

x

–2

–3

–4

–5

y

–5

–7.5

–10

–12.5

B

5 x + 2 y = 0

C

y = negative 2.5 x + 1

D

On a coordinate plane, a line goes through points (negative 1, 0) and (0, negative 2).

Step-by-step explanation:

ANSWER IS A OR B

Neporo4naja [7]3 years ago
6 0

Answer:

See explanation

Step-by-step explanation:

The constant of variation is found using the slope formula:

\frac{y_2-y_1}{x_2-x_1}

The given relation is

X : -2 , -3, -4, -5  

Y : -5, -7.5,-10,-12.5

We can use any two ordered pair to find the constant of variation.

Using (-2,-5) and (-3,-7.5), we have

m=\frac{-7.5--5}{-3--2} =\frac{-2.5}{-1} =2.5

The constant of variation is 2.5

We need to repeat this for all the options to identify the one with -2.5 as slope.

unfortunately, you did not provide the remaining options.

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rewona [7]

Answer:

Option 2: (1,0) is the correct answer

Step-by-step explanation:

Given inequality is:

y>-5x+3

In order to find which point is solution to the given inequality we'll put the point one by one in the inequality. If the point satisfies the inequality, then the point is the solution of the inequality.

Putting (0,3) in inequality

3 > -5(0)+3\\3>0+3\\3>3

Putting (1,0) in inequality

0>-5(1)+3\\0>-5+3\\0>-2

Putting (-3,1) in inequality

1 > -5(-3)+1\\1> 15+1\\1>16

Putting (-1,-2) in inequality

-2>-5(-1)+3\\-2>5+3\\-2>8

The inequality is true for (1,0)

Hence,

Option 2: (1,0) is the correct answer

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3 years ago
Use a benchmark fraction to compare 7 10 ths and 5 12 ths. Explain how you found the answer
elixir [45]
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3 years ago
mr. tyler has a total of $5,000 in savings account and in a mutual fund. If he has x dollars in the savings account, how much do
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5000-x is the number of dollars in the mutual fund
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2 years ago
Read 2 more answers
Erica earns $10.50 an hour for the first 40 hours. She is paid time and a half for every hour worked over 40 hours during a week
hjlf

Answer:

Step-by-step explanation:

10.50 X 40=420

55-40=15

15 X 2=30

15 divided by = 7.50

420+30+7.5= 450.5

5 0
3 years ago
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6 0
3 years ago
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