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What is the slope of a line passing through 3 -9 and 4-12?

Updated: 8/19/2019
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13y ago

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the slope of a line passing via (x1,y1) and (x2,y2) is

tan(theta) = m = y2-y1/x2-x1

therefore m = 12-9/4-3

= 3

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13y ago
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Q: What is the slope of a line passing through 3 -9 and 4-12?
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