paulo1913 Posted October 26, 2007 Share Posted October 26, 2007 How do I creat basic parabolas using this particular calculator? Link to comment Share on other sites More sharing options...
ghstofmaxwll Posted October 27, 2007 Share Posted October 27, 2007 I have the fx9860g. I dont think they would be any different though for this purpose. Go to >menu/ graph/EXE ...Then define Y1 with an exponent on "x" i.e. Y1:x^2. So you have a non linear function. Simple! Link to comment Share on other sites More sharing options...
paulo1913 Posted October 27, 2007 Author Share Posted October 27, 2007 I tried x^2 and it works but when I try a different one it is drawn the same as x^2... Link to comment Share on other sites More sharing options...
Cap'n Refsmmat Posted October 27, 2007 Share Posted October 27, 2007 What different one? Give an example. Link to comment Share on other sites More sharing options...
paulo1913 Posted October 27, 2007 Author Share Posted October 27, 2007 y=2x^2+3 Link to comment Share on other sites More sharing options...
Cap'n Refsmmat Posted October 27, 2007 Share Posted October 27, 2007 It should look similar to y=x2, but it should be narrower and a little higher on the graph. You just see the same thing? Link to comment Share on other sites More sharing options...
paulo1913 Posted October 28, 2007 Author Share Posted October 28, 2007 It is narrower but it has the same line of symetry at (0,0)... Link to comment Share on other sites More sharing options...
Cap'n Refsmmat Posted October 28, 2007 Share Posted October 28, 2007 It should have a line of symmetry at (0,0). You didn't move it left or right. If you want it to move left, do y=(x+2)2 or something similar. Link to comment Share on other sites More sharing options...
paulo1913 Posted October 28, 2007 Author Share Posted October 28, 2007 What does the "+3" bit do in the equation? Link to comment Share on other sites More sharing options...
Cap'n Refsmmat Posted October 29, 2007 Share Posted October 29, 2007 In 2x2+3? Moves it up 3 units. Link to comment Share on other sites More sharing options...
paulo1913 Posted October 29, 2007 Author Share Posted October 29, 2007 But on the calculator it looks the same as x^2... Link to comment Share on other sites More sharing options...
Cap'n Refsmmat Posted October 29, 2007 Share Posted October 29, 2007 Perhaps they're so close together that you can't tell the difference. Try a bigger number, like 10. Link to comment Share on other sites More sharing options...
paulo1913 Posted October 29, 2007 Author Share Posted October 29, 2007 I just tried 100 and it worked but not as much as you would think... Is there a way to adjust the settings or something to choose what the x variables are? Link to comment Share on other sites More sharing options...
Wookiee Posted October 29, 2007 Share Posted October 29, 2007 Check the window size. Thats probably what has you stumped. Check your manual to see how to change it. Thats just my guess... -Randy Link to comment Share on other sites More sharing options...
Lumpwood Posted October 29, 2007 Share Posted October 29, 2007 I've a CFX-9850GB but I think it should be fairly similar to yours, if you aren't seeing much change between your graphs the view is more than likely zoomed out too far. When the calculator plots the graph press the zoom key (F2 on my model) and this will open a zoom menu which should allow you to zoom in and out. Link to comment Share on other sites More sharing options...
paulo1913 Posted October 30, 2007 Author Share Posted October 30, 2007 Is there anyway to change it so it goes from, for example, y=x^2 to x=y^2? Link to comment Share on other sites More sharing options...
ghstofmaxwll Posted October 30, 2007 Share Posted October 30, 2007 I doubt it because there is no purpose for that in maths. If you want to see that though just rotate your calculator 90degrees. Link to comment Share on other sites More sharing options...
paulo1913 Posted October 31, 2007 Author Share Posted October 31, 2007 Is there a way to get x as the function? Link to comment Share on other sites More sharing options...
ghstofmaxwll Posted October 31, 2007 Share Posted October 31, 2007 Is there a way to get x as the function? No because f of x is the accepted modus operandi in maths. It wont help you to switch axis anyway, what will help you is listening to the people telling you about the zoom function and increment settings. Link to comment Share on other sites More sharing options...
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