$\"\"$

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Substitute $\"\"$ in rate of change formula.

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$\"\"$

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$\"\"$ (Subtract: 2 $\"\"$ 1 = 1)

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$\"\"$ (Subtract: 2 $\"\"$ 1 = 1)

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$\"\"$ (Divide: $\"\"$ ) $\"\"$

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The rate of change represented in the table is 1.