# The values of two functions, f and g, are given in a table.\begin{array} &x&-2&-1&0&1&2\\f(x)&0.8&0.2&0.1&0.005&0.025\\g(x)&80&40&20&10&2 \end{array}

The values of two functions, f and g, are given in a table. One, both, or neither of them may be exponential. Decide which, if any, are exponential, and give the exponential models for those that are.
$$\begin{array} &x&-2&-1&0&1&2\\f(x)&0.8&0.2&0.1&0.005&0.025\\g(x)&80&40&20&10&2 \end{array}$$

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Dora

Given that: