An Equation That Defines $y$ As a Function Of $x$ Is Given Solve For Defines

Multiple Choice

An equation that defines $y$ as a function of $x$ is given. Solve for $y$ in terms of $x$ , and replace $y$ with the function notation $\mathbf{f}(\mathbf{x})$ .
- $9 x^{2}+7 y=6$

A) $f(x) =6-9 x^{2}$
B) $f(x) =\frac{6-9 x^{2}}{7}$
C) $f(x) =-9 x^{2}+\frac{6}{7}$
D) $f(x) =\frac{6+9 x^{2}}{7}$