SOLUTION: Someone can give me advice? I cannot understand the test point method. Please let me know any good video or source that I can study. Thank you.

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Question 1074226: Someone can give me advice? I cannot understand the test point method.
Please let me know any good video or source that I can study.
Thank you.

Answer by Edwin McCravy(20077) About Me  (Show Source):
You can put this solution on YOUR website!
If you are in algebra studying inequalities, then
https://www.youtube.com/watch?annotation_id=annotation_2661305721&feature=iv&src_vid=0VVQYOMRlkQ&v=DPtM2aVuTlI
https://www.youtube.com/watch?v=8FCV2-EjgXg
But if you're in calculus studying increasing and decreasing
functions or concavity
https://www.youtube.com/watch?v=c1N8zyVhWxM