Type of ODE in the question

Question

Function y=f(x,t) and the differential equation  𝑑^2𝑦/𝑑𝑥^2+2𝑑𝑦/𝑑𝑥=4 would that be ordinary are partial? 

Answer 1

This is homojinius equation because f(x,y) = f(kx, ky).

So answer is D.). We can solve it using new function v = y/x