dx et y = f(x) be the solution to the differential equation What is the approximation for f(0) obtained using Euler's method with 2 steps of equal length, d=3y-x with initial condition f(1) = 3. starting at x = 1? Hint: New Y= Old Y + Y**Ax Y Y' 4. Explain why the following slope field cannot represent the differential dy equation = -0.2y dt New Y 5. For what value of k, if any, is y = e4x - ke-2x a solution to the differential equation-2y' = 12e-2x