Square Root Function

This is the Square Root Function:

f(x) = √x

This is its graph:

../algebra/images/function-graph.js?fn0=sqrt(x)&xmin=-2&xmax=6&ymin=-1&ymax=4

Its Domain is the Non-Negative Real Numbers: [0, +∞)

Its Range is also the Non-Negative Real Numbers: [0, +∞)

As an Exponent

The Square Root Function can also be written as an exponent:

f(x) = √x = x^½