y^1 (yprime) + 2y/3 = 1 - x/2 y(0) = yv0 ( y not, or y naught, or however u say it)
find y naught so that the solution just touches x-axis (can use calc)
i made it a first order ODE and made the integrating factor (u) = e ^ (int) 2dt/3
which means that....
d/dt[y(e2x/3)] = 1- x/2
so y = 9x - x^2)/(e^2x/3)
so y naught = 0.184 right?