anonymous
  • anonymous
Does anyone have a graphing calculator?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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DebbieG
  • DebbieG
http://www.wolframalpha.com/
anonymous
  • anonymous
I mean like a legitement graphing calculator
DebbieG
  • DebbieG
Yes, I have one. Why do you ask?

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anonymous
  • anonymous
This is why:
DebbieG
  • DebbieG
ok, what do you need to do there that you can't do on the wolfram link that I posted? It can evaluate anything you punch into it just like a graphing calculator can.
DebbieG
  • DebbieG
It can even plot points. Here's the first three. http://www.wolframalpha.com/input/?i=%2828%2C16%29%2C+%2835%2C13%29%2C+%288%2C2%29
anonymous
  • anonymous
Oh! Yeah I didnt know it could do that! thank you!
DebbieG
  • DebbieG
You're welcome. :)
anonymous
  • anonymous
I graphed it but how would i find it's equation?
DebbieG
  • DebbieG
Sorry, was having technical problems. Well, it kind of depends on how your teacher wants you to do it, and what work they want you to show (whether you can have the technological tool come up with the line for you, or use the formulas to find slope and intercept for the line). If you are to use formulas to compute the line yourself, just scroll down on this page: http://people.hofstra.edu/stefan_waner/calctopic1/regression.html If you can use technology, I figured out (by googling "Wolfram regression line of best fit" - wolfram is a great tool and can do a lot of things, if you aren't sure of the syntax just google and you'll probably find it), that you can get it from there using the syntax: linear fit {x,y}, {x,y}, {x,y} etc... I did one with some random point coordinates here: http://www.wolframalpha.com/input/?i=linear+fit+{1%2C2}%2C+{2%2C3.1}%2C+{4%2C3}%2C+{4.1%2C5.2}

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