Question

graph y=x2 and it inverse

Answer 1

is that a square? If so,

Answer 2

http://www.wolframalpha.com/input/?i=inverse+of+x^2

Answer 3

switch x and y
\[x=y^2\]
solve for y
\[x=\pm \sqrt{y}\]
Remember that y=x is the equation you have to graph to make sure both functions have symmetry.