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Read Inverses from Graphs or Tables Practice Test
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Q1
The table gives outputs of a function $f$ that has an inverse. Since points swap, $(x, f(x))$ on $f$ corresponds to $(f(x), x)$ on $f^{-1}$. Use the table to find $f^{-1}(13)$.
$x$ $f(x)$ 2 1 4 6 6 10 7 13 9 18
The table gives outputs of a function $f$ that has an inverse. Since points swap, $(x, f(x))$ on $f$ corresponds to $(f(x), x)$ on $f^{-1}$. Use the table to find $f^{-1}(13)$.
| $x$ | $f(x)$ |
|---|---|
| 2 | 1 |
| 4 | 6 |
| 6 | 10 |
| 7 | 13 |
| 9 | 18 |