Derivatives can be explained in two ways:  a slope of a curve or as a rate of change. 
There are some rules when it comes to taking derivatives, click on each rule to see a video that explains each concept. 
1.  Product Rule 
 -  Use the product rule when taking the derivative of two functions that are multiplied by each other. 
2.  Chain Rule
​-  Use the chain rule when taking the derivative of a composite function
3.  Quotient Rule
-  Use the quotient rule when taking the derivative of two functions that are divided by each other.

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