1. The problem statement, all variables and given/known data The Initial value problem: y' - (3/t)y = 0 y(1) = -10 Has the solution: I have attached an image of the question 2. Relevant equations 3. The attempt at a solution Firstly I found the integrating factor: u(t) = e∫-3/t dt u(t) = -3/t I plugged this back into the original equation: (-3/t)y' + (9/t2y = 0 ∫[-(3/t)y]' dt = ∫ 0 dt (-3/t)y = C y = -Ct/3 But I don't understand where I go from here. The possible answers all include t3 and I don't understand where that has come from. What step did I miss?