<PRE><B>Question 576070</B>
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Your given equation is in slope-intercept form, so you can determine the slope of the given line by inspection of the coefficient on *[tex \LARGE x].  Perpendicular lines have slopes that are negative reciprocals, thus:


*[tex \LARGE \ \ \ \ \ \ \ \ \ \  L_1\ \perp\ L_2 \ \ \Leftrightarrow\ \ m_1\ =\ -\frac{1}{m_2}\ \text{ and } m_1,\, m_2\, \neq\, 0]


John
*[tex \LARGE e^{i\pi} + 1 = 0]
My calculator said it, I believe it, that settles it
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