Finding Quadratic Functions

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Uploaded by on Nov 27, 2008

http://www.gdawgenterprises.com
The video shows how to use the TI83 and TI84 series graphing calculators to determine the equation of a quadratic function given at least three points. One example is using points from a graph and another shows how to find the equation from a table. The method used is quadratic regression.

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Education

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Uploader Comments (gdawgrapper)

  • mine did work for some reason. i hit zoom and then 9 like you showed but my graph is blank. :(

  • Not seeing your calculator, maybe I cannot pinpoint your problem. Make sure that Plot 1 is turned on in Y= view. If that's okay, go to STAT Plot view by pressing 2nd, then y=. Here you can see what lists are assigned to X list and Y list. They should by L1 and L2 for x list and y list respectively. Checking out my Plotting Points video may help.

    Thanks for viewing and commenting.

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  • thank you it help me a lot =)

  • THIS HELPS SOOOOOO MUCH!

  • thank you very much! i wish you were my math teacher.

  • You saved me man. Thank you so much.

  • THX YOU!

  • Once again you have saved the day. Thanks very much for posting.

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