Respuesta :

From the table, y varies directly as x. Therefore,  the constant of variation is k = 2 and y = 2x.

How to find a direct variation?

For direct variation,

y ∝ x

Therefore,

y = kx

where

  • k = constant of proportionality

Hence,

(-2, -4)

-4 = -2k

k = -4 / -2

k = 2

(-4, -8)

y = -4(2) = -8

Therefore,

k = 2 and y = 2x

learn more on variations here: https://brainly.com/question/2315806

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