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17-04-2019
Mathematics

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Find an equation of variation where y varies directly as x and y = 2 when x = 10, find y when x = -25.

Respuesta :

17-04-2019

Answer:

y = ⅕x; -5

Step-by-step explanation:

y = kx

k = y/x Divided both sides by x

k = 2/10

k = ⅕

y = ⅕x

The equation of variation is y = ⅕x.

If x = -25,

y = ⅕(-25) = -5

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