Decide whether the data in the table represent a linear function or an exponential function. Explain how you know.

D. The data represent an exponential function because there is a common ratio of 1/3.

Step-by-step explanation:

To find a common ratio, find out what the first "y" must be multiplied by to get to the next "y."

162 = 54x

162 ÷ 54 = 3

However, the common ratio is not 3 because the y values are decreasing. The common ratio is 1/3 because 162 × 1/3 = 54.

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