Find the Equation of the Tangent Line to the Curve $x$

Multiple Choice

Find the equation of the tangent line to the curve when $x$ has the given value.
- $f(x) =\frac{x^{2}}{2}-\frac{5 x}{2}+4 ; x=3$

A) $y=\frac{x}{4}+1$
B) $y=-7 x-9$
C) $y=\frac{x}{2}-\frac{1}{2}$
D) $y=-7 x+28$