Given the Function $f(x)=3 x^{2}+7 x-4$ , Find $f\left(-\frac{1}{2}\right)$
A) -1

Given the function $f(x) =3 x^{2}+7 x-4$ , find $f\left(-\frac{1}{2}\right)$ .

A) -1.25
B) 0.25
C) -6.75
D) -8.25