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## Homework Statement

F(x) = [x+1 / x-1] coordinates (2,3)

## Homework Equations

First principle Mtang=(F(x)-F(a))/x-a

second principle

finding the derivatives at first glance

## The Attempt at a Solution

Mtang=(F(x)-F(a))/x-a

[x+1/x-1]-(3)/(x-2)

Multiply by (x-1/x-1) to get

x+1 - 3(x-1)

----------- <- over (fraction)

(x-2)(x-1)

<<

x+1-3

---------- <- Over (fraction)

(x-2)

<<

x-2

-----

x-2

equals ONE!!

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