A General Linear Demand Function Has the Form That Follows $q = n p + b$

Multiple Choice

A general linear demand function has the form that follows. $q = n p + b$ (n and b constants, with $n \neq 0$ )

Obtain a formula for the price that maximizes revenue.

A) $p = \frac { b } { n }$
B) $p = - \frac { b } { 2 n }$
C) $p = b n$
D) $p = - \frac { n } { 2 b }$
E) $p = - \frac { 2 n } { b }$