Quadratic functions

2010017005

Level: 
B
Let \( f(x)=3x^2 \). Given the graph of the function \( f \) and the graph of a function \( g \) which was obtained as a left shift of the graph of \( f \) (see the picture), choose the function \( g \).
\( g(x) = 3(x+2)^2 \)
\( g(x) = 3(x-2)^2 \)
\( g(x) = 3x^2+3 \)
\( g(x) = 3x^2 +12 \)