Friday, January 19, 2007

Linear Equations and Parallel Lines

Problem:
(Section 4.4 #41)

3x +5y = 9
6x = -10y +9

How are these lines parallel? The slope of the first is 3. The slope of the second is 6. At least that's how it appears. (Bear in mind I'm learning this as I go, so if I'm clearly missing something, don't be shy.

What am I missing? Do I need to solve for x or y?

Still working on it.

3 comments:

Sarahthedoula said...

Uh - you won't be finding any math help from me... trust me, you DO NOT want my input! But I thought I'd say hello to you on your new blog. :) Hope you get helpful info from folks who are 'math-inclined'.

Anonymous said...

Hope I am not too late... Algebra math teacher here. Yep you need to solve for y.

kma said...

You need Andrew to help you ~ kid got an invitation to a G & T program at Johns Hopkins b/c of his math scores.

Trying to figure out how to not let him know he's beyond me! You are too know ~:)