1103083106

SubArea: 
Quadratic functions
Level: 
A
Project ID: 
1103083106
Accepted: 
1
Clonable: 
0
Easy: 
0
The quadratic function \( f \) is graphed in the picture. Which of the following is its equation?
\( f(x)=x^2+6x+9 \)
\( f(x)=x^2-6x+9 \)
\( f(x)=x^2-3 \)
\( f(x)=x^2+3 \)