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butalik [34]
3 years ago
8

Does the equation -x+4y=-2 represent a direct variation. if so what is the constant variation

Mathematics
1 answer:
Harrizon [31]3 years ago
5 0

Answer:

Yes it represents.

Variation tax = 0,25

Step-by-step explanation:

Direct variation is the name we gave to the rate of change of a first degree function.

A first degree generic function is:

y = f(x) = ax + b

Now observe the question's function:

- x + 4y = -2

4y = x - 2

y = 1/4x - 2/4

y = f(x) = 0,25x - 0,5

0,25 is our constant variation, because any number that x assume will be multiplied by 0,25.

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I added a picture of the question.
tekilochka [14]

Answer:

C) 2*18, 3*12, 4*9, 6*6

Step-by-step explanation:

When these number sets are multiplied, all of them equal 36, therefore C is your answer.

Hope this helped! :)

7 0
2 years ago
Which of the following describes the graph of a linear function?
Musya8 [376]
Its y-values increase at a nonconstant rate as its x-value increases

4 0
3 years ago
Read 2 more answers
Solve for x. Round to the nearest hundredth
PIT_PIT [208]

Given that the length of one leg is 6 and the angle is 40°

The hypotenuse is x.

We need to determine the value of x.

<u>Value of x:</u>

The value of x can be determined using the trigonometric ratio.

Thus, we have;

cos \ \theta=\frac{adj}{hyp}

Substituting the values, we get;

cos \ 45^{\circ}=\frac{6}{x}

Simplifying, we have;

x=\frac{6}{cos \ 45^{\circ}}

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Dividing, we get;

x\approx7.83

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3 0
3 years ago
Soulotion to equation if y is =15 when x=2 ,find y when x=8
skelet666 [1.2K]

Answer:

The value of y for x = 8 is 60  .

Step-by-step explanation:

Given expression as :

For x = 2  , y = 15

Let the equation be written with constant k'

So, y = k x

Or, k = \dfrac{y}{x}

∴   k =  \dfrac{15}{2}

<u>Now, again </u>

For x = 8

equation can be written as

   y = k x

Or,  y =  \dfrac{15}{2} × 8

Or,  y = \frac{15\times 8}{2}

∴    y = 15 × 4

I.e  y = 60

Hence The value of y for x = 8 is 60  . Answer

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Each month the fire department host a pancake feed. This month 75 people attended the pancake feed. This is 13 less than twice a
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