Thanks. A little problem. I´ve made a table with t,x and y. I have 9 different values for t and get nine different values for x and so on. But the problem is y values. My calculator tells me the graph will look like an S. But the table values for y tells me something else. When t=-2 then x=-2 and y=+4 but it should be y=-4. This goes on and on. I suppose it has something to do with
How do I figure this out?
Edit: I just graphed the original parametric function (and the pair of implicit functions that I solved for) and got a different graph than you did. See if you can find out what went wrong with yours.
As to graphing on a calculator, no most calculators will not graph an implicit function. You might find this graphing program to be useful, however. It will graph implicit functions, as well as a host of other graphing methods.
-Dan