$\"\"$ $\"\"$

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The slope formula of $\"\"$ .

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$\"\"$ (Replace $\"\"$ with 1, –3, 3 and 3)

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$\"\"$ (Subtract: $\"\"$ )

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$\"\"$ (Subtract: $\"\"$ )

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

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The slope of $\"\"$ .