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Practice problem

Writing Common Functions from Graphs and Tables

By Precalculus: An Investigation of Functions
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InOut−2n/a−1n/a00114293\begin{array}{|c|c|} \hline \text{In}&\text{Out}\\ \hline -2&\text{n/a}\\ \hline -1&\text{n/a}\\ \hline 0&0\\ \hline 1&1\\ \hline 4&2\\ \hline 9&3\\ \hline \end{array}

Match the table with its equation y=f(x)y = f(x).

Choose one answer

Type a concept, like “slope” or “photosynthesis”.

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