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Column AColumn B-a/bp

Column A Column B
-a/b p

(A) Column A is larger
(B) ...
(C) ...
(D) ...
(E) ...

*This question is included in Nova Math - Problem Set L: Coordinate Geometry

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Posted: 07/06/2012 07:14
Just a question... Instead of formula and solving anything, isn't "y=px+a" just like "y=mx+b" so we know "p" is the slope. And it's tilted left, so it's negative. And a slope is the point on the vertical axis divided by the point on the horizontal axis... and if it's tilted left, then you add that it's a negative slope. So -a/b is the negative slope, and p is also the negative slope. Is that right, or would it not work to reason it like this next time? Actually messing with the formula just confused me...
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Posted: 07/18/2012 23:19
Michalia, your reasoning is right. I always find it easier to work with a correct reasoning (which means you understand the principle) than memorizing formulas.
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