medium · SAT Math

The table shows values of the function h for four equally spaced values of x. x : 1 2 3 4 h(x): 81 27 9 3 Determine whether h is best modeled by a linear or an exponential function. If h(x+1) = r · h(x) for a constant r, what is the value of r?

1. 1/3
2. 3
3. 9
4. 27

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