Question 1161791
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Rewrite the given equation so that y is a function of x.


Take the first derivative of the function and evaluate at x = 4 giving you the slope of the tangent line at (4,1)


Use the negative reciprocal of the slope of the tangent line and the point (4,1) in the Point-Slope form to write <i>an</i> equation for the line normal to the given curve at the given point.  You cannot write <i>the</i> equation for a line because there is a myriad of forms for the equation of any given line.
								
								
John
*[tex \LARGE e^{i\pi}\ +\ 1\ =\ 0]
My calculator said it, I believe it, that settles it
<img src="http://c0rk.blogs.com/gr0undzer0/darwin-fish.jpg">
*[tex \Large \ \
*[tex \LARGE \ \ \ \ \ \ \ \ \ \  
								
{{n}\choose{r}}
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