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Derf Calculus Ch 2
continuity and derivatives
15
Mathematics
12th Grade
09/14/2012

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Cards

Term
Definition of Derivative
Definition
[image]
Term
Four ways in which a
function can fail to be
differentiable at a point
Definition
• Discontinuity
• Corner/Point 
• Cusp
• Vertical tangent
Term
To justify a critical number:
Definition
f'(x)=0 or does not exist
Term
Justify f(x) is increasing.
Definition

f'(x)>0

 

Term

Justify f(x) is decreasing.

 

Definition
f'(x)<0
Term

Justify f(x) is concave up.

 

Definition

 f"(x)>0 or
f'(x) is increasing. 

 

Term

Justify f(x) is concave down.

 

Definition
f"(x)<0  or
f'(x) is decreasing.
Term
[image]
Definition
[image]
Term
[image]
Definition
[image]
Term
Average rate of change
Definition
[image]
Term
Justify a local maximum.
Definition
f'(x)=0 or undefined and changes from positive to negative at x.
Term
Justify a local minimum.
Definition
f'(x)=0 or undefined and changes from negative to positive at x.
Term
Intermediate Value Theorem:  If f is continous on the interval [a,b], then...
Definition
f must take on every value (height) from f(a) to f(b).
Term
If f is differentable at a point, then...
Definition
...it must be continuous at that point. (Differentiability implies continuity.)
Term

Justify

inflection point

Definition

f"(x)=0 or undefined

AND changes sign

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