What function does this graph represent?

Answer:
B. [tex]f(x)=0.2(x-2)^2+1[/tex]
Step-by-step explanation:
The equation of a parabola in the vertex form is given by:
[tex]f(x)=a(x-h)^2+k[/tex], where V(h,k) is the vertex of the parabola
This parabola opens upwards and has its vertex at: V(2,1)
The a-value must therefore be positive.
The function must be
[tex]f(x)=0.2(x-2)^2+1[/tex]
The correct option is B.