This problem is harder, and doesn't give you clues as to which matches you have right. Study the previous problem, if you are having trouble.
Go to this page to launch the phase plane plotter to check your answers.
Match the following equations with their direction field. Clicking on each picture will give you an enlarged view.

 1. $y'=-y(5-y)$
 2. $y'=x+2y$
 3. $\displaystyle y'=\frac{y^3}{6}-y-\frac{x^3}{6}$
 4. $y'=y(4-y)$

A	B

C	D