In this video, we are going to graph square root functions.

The graphing calculator is a very important tool in order to graph square root functions. Without a calculator, simply find the square of each number and plot the points on a coordinate plane. Connect the points and make sure to put an arrow since the graph continues on. Keep in mind that the square root of negative numbers do not exist.

Note that when subtracting a number to the x under the radical, the graph shifts right by that many units, and when adding a number to the x under the radical, the graph shifts left by that many units. Also, when adding a number outside of the radical, the graph shifts up by that many units, and when subtracting a number outside of the radical, the graph shifts down by that many units.

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