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January 27, 2015

January 27, 2015

Posted by **Anonymous** on Friday, February 4, 2011 at 4:09pm.

f(x) = 9/(5 x) ( at ) \(1,(9/5))

m =

y=

- Math -
**Reiny**, Friday, February 4, 2011 at 4:53pmf '(x) = (-9/5)x^-2 = -9/(5x^2)

f '(1) = -9/5

now you have the slope and a point, use your grade 9 method to find the equation of the line

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