Monday, September 08, 2014

Function Notation Error

No matter how clearly I think I explain that f(x + Δx) ≠ f(x) + f(Δx), I still have the "believers".

Yesterday, I drew a graph to explain it to a student, and she had the big, "OH!" moment, so hopefully, THIS will work. Here's a short video of what I did:


  1. It's coming up as a picture?

  2. Anonymous6:29 AM

    Hi Lisa. I'm wondering if the video doesn't work on some devices (iPhone? iPad?) On my laptop I see the video.

    Here's a link to try, and maybe it may work: