In each of the question verify that the given functions (explicit or implicit) is a solution of the corresponding differential equation:
It is given that
Now, differentiating both sides w.r.t. x, we get,
Now, Substituting the values of y’ in the given differential equations, we get,
LHS =
= x –x = 0 = RHS.
Therefore, the given function is the solution of the corresponding differential equation.