Lesson 2.10 Types of Discontinuities - Holy Spirit High School
[Pages:8]Lesson 2.10 Types of Discontinuities
Lesson 2.10 Types of Discontinuities
1. Determine all discontinuities for a given function 2. Characterize all discontinuities using the definition of
continuity.
Continuous Function
? A function is continuous if there are no holes, breaks or jumps in its graph.
? It is often said that a function is continuous if you can draw it's graph |"without lifting your pencil " from the paper.
Continuous Function
Discontinuous Function
1
Lesson 2.10 Types of Discontinuities
Defining Continuity at a Point
A function
is continuous at the point where
if
Three criteria: 1) the limit exists 2) the function exists
3) the function equals the limit
has a value
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Lesson 2.10 Types of Discontinuities
Example 1
Understanding the Definition
exists
3
Lesson 2.10 Types of Discontinuities
Your Turn
List values of x at which the function whose graph is shown is discontinuous. At each of these points give a reason why the function violates the definition of continuity.
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Lesson 2.10 Types of Discontinuities
Types of discontinuities
(i) removable
(ii) jump (iii) infinite
nonremovable
At a particular point we can classify three types of discontinuities. Each category is based on the way in which the functions violates the definiton of the continuity at that point.
Removable Discontinuity
Infinite Discontinuity
Jump Discontinuity
5
Lesson 2.10 Types of Discontinuities
Your Turn
What type of discontinuity is illustrated by the graphs of (i)
as shown.
A) Finite Discontinuity B) Infinite Discontinuty C) Jump Discontinuity D) Removable Discontinuity
(ii)
A) Finite Discontinuity B) Infinite Discontinuty C) Jump Discontinuity D) Removable Discontinuity
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Lesson 2.10 Types of Discontinuities
Your Turn
List values of x at which the function whose graph is shown is discontinuous. At each of these points, state the type of discontinuity illustrated.
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Lesson 2.10 Types of Discontinuities 8
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