Quadratic Functions in the TI-84 plus CE

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  • Опубліковано 16 гру 2024

КОМЕНТАРІ • 9

  • @twlson49
    @twlson49 Місяць тому

    Excellent explanation as always. Can you make another video elaborate where you subtract the two equations

    • @julianamaths
      @julianamaths  Місяць тому

      I did do that, subtract the two functions, at around 22:20. Is that what you meant?

    • @twlson49
      @twlson49 Місяць тому

      @@julianamaths yes and after watching it 10 more times. I finally caught on with the local maximum explanation. I also pulled it up into a table of values and then it really made sense. It made me think of finding the derivative. I used the intersection button and it gave me (30,17). I'm thinking you are saying that could be false because there could be 2 intersections close together? Thank you for your time.

    • @julianamaths
      @julianamaths  Місяць тому +1

      Yes, exactly! And also sometimes when it is just 1, it will not even give you an answer, so it is good to know alternative ways.
      The reason why this is making you think of derivatives is because that line is tangent to the function at that point :)

  • @pedromartins8710
    @pedromartins8710 Місяць тому +1

    Olá professora, poderia fazer um video sobre como aprendeu inglês?

    • @julianamaths
      @julianamaths  Місяць тому +3

      Não tem mistério nem magia, eu fazia cursinho na adolescência e assistia Friends.

  • @twlson49
    @twlson49 Місяць тому

    A differential equation

    • @julianamaths
      @julianamaths  Місяць тому

      I do have a video about differential equations in the TI-84, but I'm not sure that's what you meant, because it doesn't really connect to the topic of this video or to the question you asked in the other comment. In any case, here it is:
      Euler's Method - IB Math AA HL and AI HL
      ua-cam.com/video/kMie9YFdgiA/v-deo.html

    • @twlson49
      @twlson49 Місяць тому

      @@julianamaths I actually watched that video first and this video made me think of that. Unfortunately I need more background to fully understand differential equations. I 100 percent agree with you on the conceptualization style of teaching which is why I like your videos.