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dlinn [17]
4 years ago
15

Determine whether y varies directly with x. If so, find the constant of variation and write the equation.

Mathematics
2 answers:
emmainna [20.7K]4 years ago
5 0
Direct variation is of the form y=kx, so y/x should be a constant, k...

-8/-2=-16/-4=-24/-6=k=4 so y=kx is:

y=4x
Lana71 [14]4 years ago
3 0

Answer:

K = 4 and y = 4x

Step-by-step explanation:

we have to find the constant of variation for the table in which y varies directly with x

y ∝ x

y = Kx

Where K is constant of variation.

K = \frac{y}{x}

1.  For x = -2 and y = -8

                           K = \frac{-8}{-2} = 4

2.  For x = -4 and y = -16

             K = \frac{-16}{-4} = 4

3.  For x = -6 and y = -24

             K = \frac{-24}{-6} = 4

Therefore, K = 4 and y = 4x will be the equation.

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A square has side length of 8 in. If the area is multiplied by 36, what happens to the side length? HELP PLEASE!!
GaryK [48]

Answer:

The side length is multiplied by 6.

Step-by-step explanation:

The area of a square is A = s². Suppose the side is 8 inches. This means the area is A = 8² = 64.

If you were to multiply by 36, then it becomes 64*36 = 2,304. Since squaring gave the area, it's side length would be found using the reverse operation a square root. Take the square root of 2,304.

√2304 = 48

The side length changed from 8 to 48 which is a scale factor of 6. This means 8 * 6 = 48.

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3 years ago
If the vegetable assembly line runs for 3 minutes, how many minutes would the fruit assembly line need to run to complete the or
Rudik [331]

Answer:

You need to say how many cans go by a minute to be able to answer this question.

Step-by-step explanation:

6 0
3 years ago
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An ice-skating rink hosts different events on different days of the week they keep track of ages of the people who attended the
kirill [66]

Answer:

i think it is B

Step-by-step explanation:

4 0
3 years ago
Eight times a number increased by 6 is 62
N76 [4]
8x+6=62

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8x=56

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3 years ago
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Graph the direct variation y=−1.5x. Using the graph, find:
Mariana [72]
Y=-3

-3=-1.5x
you substitiue y value, then you divide both sides by -1.5 and you get 2 for x.
(2,-3)

y=4.5
4.5=-1.5x
you substitute y value, then again you divide both sides by -1.5 and you get 3.
(3,4.5)



y=6
6=-1.5x
same thing for this last one. then once again divide by -1.5 and you get -4.
(-4,6)




7 0
3 years ago
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