Multiple choice general knowledge math & puzzles solve the differential equation: dy/dx = y/x xK where x does not exist Kx where K = +-e to the power of C Kx where K does not exist xK where x = +-e to the power of C Reveal answer Fill a bubble to check yourself B Correct answer Explanation Separating variables: dy/y = dx/x. Integrating: ln|y| = ln|x| + C. Exponentiating: y = Cx (where C is the constant of integration). The solution represents direct proportionality between y and x.