You can put this solution on YOUR website! We have
x - y = 0 and
y = x^2
We can substitute x^2 in for y in the first equation and solve for x:
x - x^2 = 0
x(1 - x) = 0
so x = 0 or x = 1
Then by plugging back, we see that
If x = 0 , y = 0 and
If x = 1 , y = 1