Use the graphs above to approimate the following expressions.
We are tracing individual domain numbers through function chains as our first look into function composition. When each function uses only one formula, then following the trail requires no decisions. Now we turn to piecewise defined functions where we need to pick the appropriate formula.
Graphically
The functions and are defined graphically via their graphs below.
Algebraically
The functions and are defined via the formulas below.
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more examples can be found by following this link
More Examples of Pointwise Composition