Answer
-.84
Work Step by Step
The minimum or maximum value of a function is the y-value of the vertex. The x-value of the vertex is $-b/2a$.
$f(x)=2.3x^2-6.1x+3.2$
$a=2.3$, $b=-6.1$, $c=3.2$
$x=-b/2a$
$x=-(-6.1)/2*2.3$
$x=6.1/4.6$
$x=1.326$
$f(x)=2.3x^2-6.1x+3.2$
$f(1.326)=2.3(1.326)^2-6.1(1.326)+3.2$
$f(1.326)=2.3*1.758276-8.0886+3.2$
$f(1.326)=4.0440348-4.8886$
$f(1.326)=-.844$
$f(1.326)=-.84$