Function `y=sqrt(x)`

Properties of the function `y=sqrt(x)`:

  1. Domain is interval `[0,+oo)`.This is because expression `sqrt(x)` makes sense only for `x>=0`.graph of the function y=sqrt(x)
  2. Function is neither even, nor odd.
  3. Function is increasing on `[0,+oo)`.

To draw graph of the function let's find some values of function: if x=0, `y=sqrt(0)=0`; if x=1, `y=sqrt(1)=1`; if x=2, `y=sqrt(4)=2`; if x=3, `y=sqrt(9)=3`.

Draw these points and then draw smooth curve through them. Result is shown on figure.