If x > 1, which of the following decreases as x decreases?
I. x + x^2
II. 1/(2x^2 − x)
III. 1/(x + 1) Options:
A) I only	B) II only	C) III only	D) I and II only	E) II and III only
let x= 4 and 3 b old and new values   ST1: x= 4 -&gt; 4+16 = 20   x=3-&gt; 3+9 = 12 ...decreased   ST2:x= 4-&gt; 2*16-4 = 1/28   x=3-&gt;2*9-3 = 1/15   increased   St3: x=4-&gt; 1/4 = .25   x=3-&gt;1/3 = .33   I onlyns: I only
<result>A</result>
If x > 1, which of the following decreases as x decreases?
I. x + x^2
II. 1/(2x^2 − x)
III. 1/(x + 1)