## Algebra 1

-$\frac{3}{8}$
If a=8, and b=6, in order to evaluate the expression $\frac{-b}{2a}$ all we must do is simply plug in the givens into the expression. $\frac{-b}{2a}$=$\frac{-(6)}{2(8)}$=$\frac{-6}{16}$=-$\frac{3}{8}$