Find Area Below Graph with Calculus: A Lab Tutorial

[interXdragon]

Okay, so my question is: given the picture below, how can I find the area below the graph (in the shaded region) ? It's for a lab that I did in class, but it wasn't until i finished the whole picture that i realized that I didn't know how to calculate the area of this graph.

Thanks.

http://unityofthedragons.org/oker.jpg

 

[Tide]

This is the THIRD time you posted that problem - it's starting to look like SPAM!