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For the inverse variation equation Xy = k what is the constant of variation, k, when X = -2 and y =5

-10
-2/5
5/2
10

Respuesta :

absor201

The constant of variation is: -10

Step-by-step explanation:

The inverse proportion between y and x is given by:

y ∝ 1/x

When the proportionality symbol is removed, the proportionality consatnt is introduced

So

[tex]y = \frac{k}{x}\\k = xy[/tex]

Putting the values of x and y

x = -2

y = 5

[tex]k = -2 * 5\\k = -10[/tex]

Hence,

The constant of variation is: -10

Keywords: Proportion, variation

Learn more about variation at:

  • brainly.com/question/6541303
  • brainly.com/question/6530759

#LearnwithBrainly

Answer:

-10 or (A)

Step-by-step explanation:

edge 2020

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