contestada

If y varies directly as x, and y is 20 when x is 4, what is the constant of variation for this relation?
1/5
4/5
5
16

Respuesta :

josshyaby

Answer:

Step-by-step explanation:

y & x

y = kx

When y = 20 and x = 4

k = y/x

k = 20/4

k = 5

Constant of proportionality is 5

The constant of variation for the relation is 5.

How to find constant of a variation?

y varies directly as x, and y is 20 when x is 4. Therefore,

y ∝ x

y = kx

where

  • k = constant of proportionality

Therefore,

y = 20

x = 4

20 = k4

divide both sides by 4

k = 20 / 4

k = 5

learn more on variation here: https://brainly.com/question/2894458

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