Read this page. Also, make sure to watch the "Special Types of Linear Systems" video embedded in the text. Then, complete practice problems 7-24. Keep in mind that you do not have to actually solve a system to classify it as inconsistent or dependent; it is enough to show that slopes of both lines are the same and the y- intercepts are different (in case of inconsistent system) or that the equations in the system are equivalent (in case of dependent system). Once you have completed the practice problems, check your answers against the answer key.

Click http://www.ck12.org/book/Basic-Algebra/section/7.5/ link to open resource.