This was the clearest example I've ever seen. I'm going to use your method of organizing the parts of the problem. So much easier than what I was doing. You're the best!
My TA explained the same exact question and I had no idea what he was talking about, now watching your video, everything seems to make a lot of sense now, thank you so much!
Wow. This was the best video I've ever seen explaining this. Amazingly clear. How can I download the help sheet with the boxes to fill out, graph line, and x and y graph? Is it online somewhere?
Thanks so much. I'm a little behind on replying to comments. Here's a link to the current graph I am using. It might be slightly different than in the video, I continually make changes to the resources I use. bit.ly/3xSQ5TH
i was always told you weren't able to use those critical points because they weren't in the domain. However when i do this in quizzes i get them wrong. Now i see why
@@ColesWorldofMathematics i have a calculus final tmr and this type of problem is about 15-20% of the mark on the finals because it takes an eternity to finish.
Im guessing you got (-60x^4 + 160x^2 + 320) / (x^2 - 4)^4 because thats what I got. What you can do is factor out an (x^2 - 4) from both the numerator and denominator, and you will get what she got. Even if you don't do this, you should manage to get the same inflection points.
@Clark Callander Thanks for replying to @Maryam Javed. I'm definitely behind in replying to comments on my channel. Attempting to catch up today! Thanks again @Clark Callander.
