Variable y varies directly with variable x, and y = 16 when x = 12. Enter the constant of variation in lowest terms. y = x

k = 1.33 or 1 1/3

Formula of Direct variation. Where y is equal to the product of the constant of variation times x.

y = kx

16 = k * 12

k = 16/12

k = 1 4/12 = 1 1/3

Constant of variation is 1 1/3 or 1.33.