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