GMAT Club Forumhttps://gmatclub.com:443/forum/ Math: Coordinate Geometryhttps://gmatclub.com/forum/math-coordinate-geometry-87652-40.html Page 3 of 3

 Author: saby1410 [ 23 Aug 2020, 11:16 ] Post subject: Re: Math: Coordinate Geometry Bunuel VeritasKarishma If the slope of a line is negative, the line WILL intersect quadrants II and IV. PLEASE EXPLAIN ME THIS PART WITH EAXAMPLE IF POSSIBLE I DIDN'T GET THIS X and Y intercepts of the line with negative slope have the same sign. Therefore if X and Y intersects are positive, the line intersects quadrant I; if negative, quadrant III.

 Author: KarishmaB [ 25 Aug 2020, 23:13 ] Post subject: Re: Math: Coordinate Geometry saby1410 wrote:Bunuel VeritasKarishma If the slope of a line is negative, the line WILL intersect quadrants II and IV. PLEASE EXPLAIN ME THIS PART WITH EAXAMPLE IF POSSIBLE I DIDN'T GET THIS X and Y intercepts of the line with negative slope have the same sign. Therefore if X and Y intersects are positive, the line intersects quadrant I; if negative, quadrant III.Here is a post discussing slopes and intercepts:https://www.gmatclub.com/forum/veritas-prep-resource-links-no-longer-available-399979.html/2011/0 ... -vertices/Check it out. Should help resolve your doubts.

 Author: dan0015 [ 05 Jul 2021, 23:51 ] Post subject: Re: Math: Coordinate Geometry 2. If the slope of line is positive, line WILL intersect quadrants I and III. Y and X intercepts of the line with positive slope have opposite signs. Therefore if X intersect is negative, line intersects the quadrant II too, if positive quadrant IV.Is this accurate? If x is negative and y positive, the line should be in Q4 not in Q2.

Author:  Bunuel [ 06 Jul 2021, 00:09 ]
Post subject:  Re: Math: Coordinate Geometry

dan0015 wrote:
2. If the slope of line is positive, line WILL intersect quadrants I and III. Y and X intercepts of the line with positive slope have opposite signs. Therefore if X intersect is negative, line intersects the quadrant II too, if positive quadrant IV.

Is this accurate? If x is negative and y positive, the line should be in Q4 not in Q2.

Check the image below:

 Attachments: Untitled.png [ 10.35 KiB | Viewed 961 times ]

 Author: dan0015 [ 06 Jul 2021, 01:36 ] Post subject: Re: Math: Coordinate Geometry Thanks Bunuel. Just checked again and my quadrants were numbered differently than in the OP (your Q2 is Q4 in my graph).

 Author: Nina1987 [ 10 Sep 2021, 22:51 ] Post subject: Re: Math: Coordinate Geometry Is the standard form Ax+By+C = 0 or Ax+By= C? I know mathematically they are exact same. But it is better to use one form as otherwise you have to flip the sign for y intercept depending on which for you are using. On the test day you don't want to thinking about this even for a split second, do u? There does not seem to be a general consensus about it among mathematicians but at least if I know which one the OGs use most frequently, I ll go with it. Thanks

 Author: bumpbot [ 12 Sep 2022, 09:35 ] Post subject: Re: Math: Coordinate Geometry Hello from the GMAT Club BumpBot!Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.

 Page 3 of 3 All times are UTC - 8 hours Powered by phpBB © phpBB Grouphttp://www.phpbb.com/