Differens between y=2x and y=2^x and y=x^2
$$It\; is \;just\\\\ y=|x^2-2x|\\ or\\ y=|2x-x^2|\\$$
The are both the same. I put the absolute values there because I don't know which is bigger
|3-5|=|5-3|=2
this ^ means to the power of