Generate and plot ordered pairs from rules, tables, and contexts.
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Problem
Which approach below should you use to evaluate \(y~=~2x~+~1\) at \(x~=~0\), \(1\), and \(2\)? Choose it, then list every resulting point.
A. Make a value table by substitution. B. Read a nonexistent table. C. Draw before computing points.
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What this problem is really about
Since the source gives a rule rather than precomputed points, the direct preparation is to build a small value table. Put each requested x-value in the input column, evaluate the full expression for y, and translate each row into an ordered pair before any drawing. Computing first prevents a sketch from turning exact coordinates into guesses.
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