Function `y=x^2`

Properties of the function `y=x^2`:graph of the function y=x^2

  1. Domain is all number line, i.e. interval `(-oo,+oo)`.
  2. Function is even: `f(-x)=(-x)^2=x^2=f(x)`.
  3. On interval `[0,+oo)` function is increasing.
  4. On interval `[-oo,0]` function is decreasing.

Graph of this function is parabola.