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Mathematical Expression Editor
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In this set of videos, we will work to understand how to find function values of
piece-wise functions, how to find the domain and range of piece-wise functions, and
how to graph piece-wise functions.
Question 1: Finding function values of piece-wise functions.
(Click the arrow to the right to see the first question.)
(Click the arrow to the right to see the question posed at the end of the video.)
Find when is defined by
(Click the arrow to the right to see an example.)
Example 1
Question 2: Finding the domain of a piece-wise function.
(Click the arrow to the right to see the second question.)
(Click the arrow to the right to see the question posed at the end of the video.)
What is the domain of if is defined by the expression below?
(Hint: Are there any values of for which is undefined?)
(Click the arrow to the right to see an example.)
Example 2
Question 3: Find the range of a piece-wise function.
(Click the arrow to the right to see the third question.)
(Click the arrow to the right to see the question posed at the end of the video.)
What is the range of when is defined by the expression below?
(Click the arrow to the right to see an example.)
Example 3
Question 4: Graphing piece-wise functions.
(Click the arrow to the right to see the fourth question.)
(Click the arrow to the right to see the question posed at the end of the video.)
Which of the graphs is the graph of where is defined below?
(Click the arrow to the right to see an example.)
Example 4
Start typing the name of a mathematical function to automatically insert it.
(For example, "sqrt" for root, "mat" for matrix, or "defi" for definite integral.)
Controls
Press...
...to do
left/right arrows
Move cursor
shift+left/right arrows
Select region
ctrl+a
Select all
ctrl+x/c/v
Cut/copy/paste
ctrl+z/y
Undo/redo
ctrl+left/right
Add entry to list or column to matrix
shift+ctrl+left/right
Add copy of current entry/column to to list/matrix
ctrl+up/down
Add row to matrix
shift+ctrl+up/down
Add copy of current row to matrix
ctrl+backspace
Delete current entry in list or column in matrix
ctrl+shift+backspace
Delete current row in matrix
×
Start typing the name of a mathematical function to automatically insert it.
(For example, "sqrt" for root, "mat" for matrix, or "defi" for definite integral.)