Question

Does the equation represent a direct variation? If so, find the constant of variation.

5x = -3y

A. no

B. yes; k = -5/3

C. yes; k = 5/3

D. yes; k = 3/5

Answer 1

Direct variation means the equation is linear.The above equation is linear.
And the form is y = kx. y = -5x/3 .So k = -5/3.
B. yes; k = -5/3 is the answer.

Answer 2

kartik is right

Answer 3

If y can stand alone then the function is linear. So by dividing 5x by -3 y stands alone and k=-5/3