Why am I paying to watch your vids when they are free?

Hi!

I LOVE this site! I love the idea that I may be able to learn anything for free. I am taking a College Algebra Course that requires me to purchase a program name MyMathLab by Pearson at over $100 and to my dismay they are embedding your FREE videos as a part of my homework? I am not sure if it is something the teacher did or if it is from the program but something doesnt sit right with me watch Khan Academy videos through links on MyMathLab programs. it just didnt feel like something ya'll stood for.

Please advise!!

Margeaux