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Here we will be discussing the basics of a derivative of functions.
1.
3.1 Derivative of a
Function
Calculus AB
2.
Vocab/Formulas
• Derivative:
– From 2.4 we defined slope of a curve of y = f(x) at
a point where x=a as
– When it exists, this limit is called the derivative
of f at a. f’(x) is the derivative of the function.
• Differentiable: a function is differentiable
at a point when the f’(x) exists
– If the function is differentiable at every point in
the domain, it is a differentiable function
5.
Example 1: Differentiate
7.
Alternate Definition
• Derivative at a point x=a:
(a,
f(a))
a
8.
Example 3: Use the alternative
derivative formula to differentiate at x = a
9.
Example 4: Graph the derivative of
the given function.
10.
Example 5: Sketch f given the
following information:
a.) f(0)=0 b.) The graph below is f’ c.) f is
continuous
11.
Vocab
• Right-Hand Derivative:
• Left-Hand Derivative:
12.
Example 6: Show that there are LH
& RH derivatives at x = 0 but no derivative
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