The graph of f(x) = x2 is shifted 3 units to the left to obtain the graph of g(x). which of the following equations best describes g(x)?

we have

This is the equation of a vertical parabola open upward with the vertex at point

we know that

The graph of f(x) is is shifted units to the left to obtain the graph of g(x)

so

The rule of the translation is

Applying the rule of the translation at the vertex of the graph of f(x)

The vertex of the graph of g(x) is the point

therefore

the answer is

The equation of g(x) is equal to