The table of values below represent an exponential function. Find the constant ratio of successive y-values. x y-28-1120181 272 40.5

Divide each y-value by the one before it to find the constant ratio. For example, 12 ÷ 8 = 1.5, and 18 ÷ 12 = 1.5; the next ratios are also 1.5. The constant ratio is 1.5, choice C.

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