joslipMardanblu joslipMardanblu

21-10-2016
Mathematics

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What is the constant of variation, k, of the line y = kx through (3,18) and (5,30)?

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nobillionaireNobley nobillionaireNobley

31-10-2016

y - 18 = (30 - 18)/(5 - 3) (x - 3)
y - 18 = 12/2 (x - 3)
y - 18 = 6(x - 3) = 6x - 18
y = 6x

The constant of variation (k) is 6.

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