# Plotting an element in a polynomial ideal

I have a polynomial ring in three variables:

```
P.<x,y,z> = PolynomialRing(QQ)
```

and I've eliminated the variable `t`

in an ideal generated by several polynomials to obtain an implicit function in just `x`

and `y`

. I'd like to plot this function. But the `plot`

method, applied to an ideal in just two variables, produces the error:

```
ValueError: Variable 't' not found
```

So either I need somehow to introduce this variable into the plot, or pull the function out of the polynomial ring so that it can be plotted as a function of real variables with `implicit_plot`

. But I'm not sure how to do either...any advice would be most helpful!