If -12 < x < 14, Then which of the following must be true ?
Choose the correct choice.
A) x = -11
B) x <= 13
C) x > 12
D) x > -43
E) x >= 11
SOLUTION:   A. x = -11 --&gt; Not always true. x can be any value between -12 and 14   B. x &lt;= 13 --&gt; Not always true. If x = 13.5 then x &gt; 13.   C. x &gt; 12 --&gt; Not always true. x can be a value less than 12.   D. x &gt; -43 --&gt; Always true. x can take a minimum value of -12 (approx.). Hence x is always greater than -43.   E. x &gt;= 11 --&gt;Not always true. x can be a value less than 11.   Answer: x &gt; -43
<result>D</result>
If -12 < x < 14, Then which of the following must be true ?