tag:blogger.com,1999:blog-3302425320444626441.post3610514450046278395..comments2021-03-19T15:46:35.287-07:00Comments on TechnologyIQ: Updated: Wolfram Alpha can help parents with children's math homework -- also Khan AcademyDouglashttp://www.blogger.com/profile/04857602988312960240noreply@blogger.comBlogger3125tag:blogger.com,1999:blog-3302425320444626441.post-38176651816208288912011-03-08T18:24:39.054-08:002011-03-08T18:24:39.054-08:00Douglas, you can't blame yourself for what you...Douglas, you can't blame yourself for what you didn't know. Be proud that you made the attempt! Keep experimenting.Lori MathHeadhttps://www.blogger.com/profile/09189603484459676563noreply@blogger.comtag:blogger.com,1999:blog-3302425320444626441.post-78073645864068292432011-03-02T10:50:08.997-08:002011-03-02T10:50:08.997-08:00Thanks for that. I would have never known. Of cour...Thanks for that. I would have never known. Of course, I made up the equation off the top of my head, so I will take the blame for the problem. (LAUGH)Douglas E. Welchhttps://www.blogger.com/profile/06062228284748893073noreply@blogger.comtag:blogger.com,1999:blog-3302425320444626441.post-38133185503375166502011-03-02T10:45:34.920-08:002011-03-02T10:45:34.920-08:00The only problem is any parabola is x^2 for is alw...The only problem is any parabola is x^2 for is always vertical, not horizontal. For example. if a=3, then the plot would look like this: http://www.wolframalpha.com/input/?i=x^2%2B3%3D29<br />This is one of those cases where the results were misinterpreted because of the variable a. If you use x and y or just x, your input should be interpreted correctly. <br /><br />Try these other inputs to see more:<br />x^2+y=29<br />x^2+x=-7<br />x^2=3-2xLori MathHeadhttps://www.blogger.com/profile/09189603484459676563noreply@blogger.com