Question 979238
What is the slope of the line that passes through (a, 2b) and ( (1/aČ), 2b)?
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Slope = diffy/diffx
There's no change in the y values.
--> diffy = 0
slope = 0
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PS  Don't put a space after the comma in the points.  It's irritating.
(a,2b) and (1/aČ,2b)