2. Use first differences, second differences, and/or ratios to classify each relation as linear, quadratic, exponential, or none of these. [3] a. X y b. X y -3 4.629 -3 9.2 -2 2.778 -2 8.8 -1 1.667 -1 8.4 0 1.000 0 8.0 1 0.600 1 7.6 2 0.360 2 7.2 3 0.213 3 6.8
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If the first differences are constant, then the relation is linear. If the first differences are not constant, we move on to the second differences. Second, we can find the second differences by subtracting each first difference from the previous first Show more…
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