G(x)=3x^2 graph it.

Vertex?
Line of symmetry

The graph of G(x)=3x^2 is a parabola that opens upwards.

To find the vertex, we use the formula x=-b/2a. In this case, a=3 and b=0 because there is no x-term.

So, x=-0/(2*3)=0. Therefore, the vertex is (0,0).

The line of symmetry is a vertical line that passes through the vertex. In this case, the line of symmetry is x=0.