Master Determining if a Mapping is a Function or Not

[alexrodelo]

I just have to say that I find a lot of value in your videos. I am taking Beginning Algebra this semester. I have a ADHD. While I enjoy my Algebra class it seems that my math instructor is explaining equations a bit too fast for me. I have emailed him about my issue but nothing has changed in his teaching style. Yet your explanations of equations are at a decent pace for me. Thanks to your videos I am learning Algebra at a more comfortable pace. Keep up the good work.

[Aesttrick]

This video alone taught me more than my whole 9th grade math so far

[SWAG_VISION]

Watched your video with my daughter yesterday she needed help on this subject & I love your teaching thanks for posting!!

[sggvs]

You just saved my quiz grade dood. Thanks

[suspendedsuplexchannel]

Sir why the negative value of |x|=√x is restricted??🙏🙏

[tasmincr]

This video isn't helpful. Sure you've taught a concept but since we will never be in an exam where they lay a question out like the problems you have displayed in your video- the concept is not physically applicable and therefore is not helpful. If you had have added how we can use this concept to say check the mapping of an equation, from an actual functions question, to see if it is a function then we would know how to use what you have taught us in this video in real life examples- however since you didn't do that, this video is useless. Hope you take this as some constructive criticism...