Question 72585
Y=X
Y=SQRTX OR Y^2=X
Sorry but this graphing system doesn't like sqrt or ^ so I can't graph the second equation.
however if:
x=1 then y=+-1
x=4 then y=+-2
x=9 then y=+-3
x=16 then y=+-4

{{{ graph( 300, 200, -6, 5, -10, 10, y = x, y^2 = x) }}} (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, of TWO functions y = x and y^2 = x).