Question 60745
<pre>
Domain, Range
   2   ,   4
   3   ,   9
  -2   ,   4
  -3   ,   9


Umm..  it's f(x)=x<sup>2</sup>, or y=x<sup>2</sup>; whichever notation you're used to.
Look;
2<sup>2</sup>=4
3<sup>2</sup>=9
(-2)<sup>2</sup>=4
(-3)<sup>2</sup>=4

The mental process went so;
I first noticed that both positives and negatives yield positive numbers, so it
must have been a parabola or x<sup>Even number</sup> with possible
complications.

Then I noticed that 2 is 4, and -2 is 4, so it was obvious to me that the
function was x<sup>2</sup>.  If you have any questions/concerns IM or email me.
</pre>