I don't know if I'm having a brain fart or what but I'm drawing a blank...:rofl:(adsbygoogle = window.adsbygoogle || []).push({});

What is the slope of a line perpendicular to x - 3y = 9?

Notes:

Perpendicular lines have slopes that are negative reciprocals of each other.

Example: So, if the original line has a slope of -3/2, the line perpendicular to the original line has a slope of 2/3.

So, if I work that problem out, I get...

-3y = 9 - x

y = 9 - x/-3

y =

That is where I'm locked up...what do I do with the x? It's been a while since I've done this (The last time I turned any homework in in this class was eight days ago. I've been juggling catching this class up and keeping up in Chemistry so... ) so I'm, more than likely, just having a brain fart.:tongue:

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# Homework Help: Perpendicular Lines

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