Domain, Range 2 , 4 3 , 9 -2 , 4 -3 , 9 Umm.. it's f(x)=x2, or y=x2; whichever notation you're used to. Look; 22=4 32=9 (-2)2=4 (-3)2=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 xEven number with possible complications. Then I noticed that 2 is 4, and -2 is 4, so it was obvious to me that the function was x2. If you have any questions/concerns IM or email me.