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22-05-2020
Mathematics

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Which equation represents a direct variation? What is the constant of variation?
3y = 2x+1;1
y=-5x-11;5
4y=-12x; -3
y+7=2x-1;7

Respuesta :

jimrgrant1 jimrgrant1

22-05-2020

Answer:

C

Step-by-step explanation:

The equation of quantities in direct variation is

y = kx ← k is the constant of variation

The only equation in this form is 4y = - 12x, that is

4y = - 12x ( divide both sides by 4 )

y = - 3x ← in form representing direct variation with k = - 3 → C

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