Plotting with Mathematica or Wolframalpha

[tolove]

Apologies if this is readily available, but I can't seem to find an example of it.

How do I go about plotting multiple functions on the same graph? It keeps splitting my functions up into separate graphs. Nothing complicated, just something like two planes intersecting.

 

[hilbert2]

If you want to plot something like $f(x)=x^{2}$ and $g(x)=x^{3}$ on the same graph with $x$ interval $-1 \leq x \leq 1$, using Mathematica, you write Plot[{x^2, x^3},{x,-1,1}]. At least this works in Mathematica 7.

 

[tolove]

If you want to plot something like $f(x)=x^{2}$ and $g(x)=x^{3}$ on the same graph with $x$ interval $-1 \leq x \leq 1$, using Mathematica, you write Plot[{x^2, x^3},{x,-1,1}]. At least this works in Mathematica 7.

Thanks! Works!