Combine studied function types arithmetically to build models.
Evaluate \((f+g)(a)\) from given function values and interpret the combined output
Problem
Use these values to evaluate \(f+g\) at input \(3\): \(f(3)=8\), \(g(3)=-2\).
Big Picture
What this problem is really about
When individual function values are already given, those values are all the information needed for the combined output. Match both values to the same input, preserve the sign on each one, and apply the indicated operation directly. Reconstructing formulas would add work without adding information.
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