1. An Introduction to Partial Derivativesz
100
An Introduction to Partial Derivatives 10 y 10 x
Greg Kelly, Hanford High School, Richland, Washington

2. When we have functions with more than one variable, we can find partial derivatives by holding all the variables but one constant. z
100 10 y 10 x
Note:
is also written as
(eff sub ecks)

3. would give you the slope of the tangent in the plane y=0 or in any plane with constant y.z
100 10 y 10 x
In other words, how is changing one variable going to change the value of the function?

4. Mixed variables are also possible:
Both answers are the same! p