Combine standard functions using arithmetic operations to build models.
Evaluate and interpret combined functions such as (f+g)(a), (f-g)(a), and (fg)(a) from given function values
Problem
Use these function values to evaluate \((f+g)(2)\): \(f(2)=7\) and \(g(2)=5\).
Big Picture
What this problem is really about
When both function values are already supplied for the same input, no underlying formulas need to be reconstructed. We’ll expand the combined-function notation, match each named output to its given value, and apply exactly the operation shown outside. This keeps addition distinct from multiplication or composition and avoids doing unnecessary work.
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