Given the Following Revenue and Cost Functions, Find the X-Value $$R ( x ) = 58 x - 2 x ^ { 2 } ; C ( x ) = 25 x + 98$$

Multiple Choice

Given the following revenue and cost functions, find the x-value that makes profit a maximum. (Recall that profit equals revenue minus cost.) $$R ( x ) = 58 x - 2 x ^ { 2 } ; C ( x ) = 25 x + 98$$

A) 9.25
B) 14.5
C) 16.5
D) 8.25