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.
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.