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30 May, 04:31

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

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  1. 30 May, 04:41
    0
    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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