I apologize, for I am very new to sage. Here is what I input; the error was that y was not defined. f(x)=x^2 P=implicit_plot3d(lambda x,y,z:x-2,(-2,2),(-2,2),(-2,8)) plot(f)+plot3d(P)

1 | initial version |

I apologize, for I am very new to sage. Here is what I input; the error was that y was not defined. f(x)=x^2 P=implicit_plot3d(lambda x,y,z:x-2,(-2,2),(-2,2),(-2,8)) plot(f)+plot3d(P)

I apologize, for I am very new to sage. Here is what I input; the error was that y was not ~~defined.
~~defined.

```
f(x)=x^2
P=implicit_plot3d(lambda x,y,z:x-2,(-2,2),(-2,2),(-2,8))
```~~plot(f)+plot3d(P)~~plot(f)+plot3d(P)

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