Determine whether y varies directly with x. If so, find the constant of variation and write the equation.
b. yes; K = 4 and y = 4x
c. yes; k = 4 and x = 4y
d. yes; k = 1/4 and y = 1/4 x
the right answer is (b) yes; K = 4 and y = 4x
if you not understand, i can explain.
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