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DEFINITION OF THE DERIVATIVEDerivatives Review- 1
Tangent Line Problem
The tangent line can be found by finding the slope of the secant line through the point of tangency and a point on the curve
Theorem 2-1
Differentiability implies continuity
Not the other way around
For a function f(x) the average rate of change along the function is given by:
Which is called the derivative of f
f '(x) lim
x 0f (x x) f (x)
x
Definition of the Derivative
Notation:
1) Find the derivative using the limiting process
f (x) x 2 3x
2) Find the equation of the tangent line through the point (-2 , 2)
f (x) x 2 3x 4
Graphs and their derivatives
3) The graph of f(x) is given. Sketch the graph of f’
4) Piecewise derivatives.
a) Find f’(3)
b) Find f’(4)
c) Find f’(0)
3 x9-6x
3 x )(
2xxf
HOME WORKPage 104 # 5-23 odd and # 39-48 and Worksheet 2-A derivatives