If the function f(x) is defined for all real numbers x as the maximum value of 2x + 4 and 12 + 4x, then for which one of the following values of x will f(x) actually equal 2x + 4 ?  Choose the correct choice from the following choices
A) –3
B) –5
C) –6
D) –7
E) –9
Since f(x) defines maximum of 2x + 4 and 12 + 4x,   to find those x when 2x+4 has greater value,   2x + 4 &gt; 12 + 4x   or x &lt; -4   Only value that satisfy this is -5.   Answer is (–5),
<result>B</result>
If the function f(x) is defined for all real numbers x as the maximum value of 2x + 4 and 12 + 4x, then for which one of the following values of x will f(x) actually equal 2x + 4 ?