WithCAS:
Find the solution to  y ' = -3y + 4 
through the point (2,5)

With CAS:
Find the general solution to y ' = y .
Find the solution through the point (7,4).

With CAS:
Find the general solution to y ' = 2y/x .
Find the solution through the point (-2,4)

With CAS:
Find the solution to y ' = y * (6-0.25y), 
through the point (2,16)

c_1 = 0
c_2 = 0