Question 1129389
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Lines are parallel ONLY when their slopes are equal.  Use the slope formula:


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ m\ =\ \frac{y_1\ -\ y_2}{x_1\ -\ x_2}]


To write two expressions in terms of *[tex \Large k] to represent the slopes of the two lines.  Set these two expressions equal to each other and then solve the resulting equation for *[tex \Large k].
								
								
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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