Respuesta :
Swap the position of x and y:
y = 9x^2
x = 9y^2
Now solve for y:
x = 9y^2
9y^2 = x
y^2 = x / 9
y = plus-minus √x / 3
So:
y = -√x / 3, √x / 3
y = 9x^2
x = 9y^2
Now solve for y:
x = 9y^2
9y^2 = x
y^2 = x / 9
y = plus-minus √x / 3
So:
y = -√x / 3, √x / 3