\"slope\"\"

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Since the line is raising the slope is positive.

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Next, find the slope.

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\"\"

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Substitute 4 for y2,  4 for y1, 8 for x2, and 4 for x1  in slope formula.

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\"\"

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\"\"               (Apply addition inverse proparty: \"\")

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

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

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The slope(m) is 0.