Steps For Graphing Square Root Functions 

 

1. Become familiar with the shape of square root graphs and its parent function. The parent function is y equals the sqaure root of x. The graph of this function looks like this.

 

2. For your equation, create

a table of x and y values and

enter in a few points.

 

3. Plot these points on a 

piece of graph paper, or on a 

graph created by hand.

 

4. Connect these points 

keeping in mind the general

shape of the parent function.

 

*Make sure to remember 

the equation y=root a (x-h) +k.

Changing the values of these variables will result in different shifts in the graph. A change in h will move the graph left or right. A change in k will move the graph up or down. A change in a will dilate your graph.* 

 

Video Example

 

 

 

 

 

 

 

 

 

 

 

still stuck? Here are some other great resources...

 

Purple Math

http://www.purplemath.com/modules/graphrad.htm

 

Youtube Example

https://www.youtube.com/watch?v=a0jviKGEUFQ