Level:
Project ID:
1003108305
Accepted:
1
Clonable:
0
Easy:
0
Find the quadratic function \( f \) whose graph is passing through the points \( [0;-9] \), \( [2;-3] \), \( [6;-3] \).
\( f(x)=-\frac12x^2+4x-9 \)
\( f(x)=-\frac12x^2+4x-3 \)
\( f(x)=x^2-8x-9 \)
\( f(x)=-2x^2+7x-9 \)