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Let P = (xp, yp) and Q = (xq, yq) by any two distinct points on the line.

If xp = xq then the slope is infinite.

Otherwise, it is (yq - yp)/(xq - xp) = (yp - yq)/(xp - xq)

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9y ago
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8y ago

Take two points and plug them into the equation (y2 - y1)/(x2 - x1) to find the slope of a line.

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Q: How do you determine slope of the line?
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How do you determine a slope from a graph?

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