$\"\"$ \ \

\

Consider the case $\"\"$ . \ \ $\"\"$ means the distance between $\"\"$ and $\"\"$ is less than $\"\"$ units.

\

Hence the solution is in between $\"\"$ and $\"\"$ .

\

Consider the case $\"\"$ . \ \ $\"\"$ means the distance between $\"\"$ and $\"\"$ is greater than $\"\"$ units.

\

Hence the solution is outside of $\"\"$ and $\"\"$ .

\

$\"\"$

\

Observe the graph:

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The graph has one terminal of the line graph containing circle at $\"\"$ .

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Other terminal of the line graph containing circle at $\"\"$ .

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The solutions are between $\"\"$ and $\"\"$ but $\"\"$ and $\"\"$ are not included in the solution set. \ \

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Therefore the absolute function :

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$\"\"$ .

\

$\"\"$ .

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The absolute function is $\"\"$ .

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$\"\"$

\

The absolute function is $\"\"$ .