<PRE><B>Question 197345</B>
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Step 1: Put your equation into slope-intercept form, that is, solve for &lt;b&gt;&lt;i&gt;y&lt;/i&gt;&lt;/b&gt; so that it looks like: *[tex \LARGE y = mx + b]


Then use the slope, &lt;b&gt;&lt;i&gt;m&lt;/i&gt;&lt;/b&gt;, of the given line that you can determine by inspection of the slope-intercept form of your equation and the fact that:


*[tex \LARGE \ \ \ \ \ \ \ \ \ \  L_1 \perp L_2 \ \ \Leftrightarrow\ \ m_1 = -\frac{1}{m_2} \text{ and } m_1, m_2 \neq 0]


to determine the slope of the desired line.


Then use this new slope value, the given point, and the point-slope form of the equation of a line to derive the desired equation:


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ y - y_1 = m(x - x_1) ]


John
*[tex \LARGE e^{i\pi} + 1 = 0]
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