BREAKING: Target Test Prep releases Brand New 2026 On Demand GMAT prep course

Redeem

Target Test Prep · GMAT

Choose how you want to prepare

Learn live with an expert or move at your own pace. Every option includes the complete TTP study system.

★★★★★5.0559 reviews
GMATLiveTeach 7 seats left
Chris Peckover
NEXT LIVE COHORT

Oct 13 to Jan 7, 2027

with Chris Peckover

Schedule
Tue, Thu · 8:00 to 10:00 PM ET
Included
40 live hours + 6 months of GMAT OnDemand
  • Live instruction and real-time questions
  • Class recordings and assigned practice
View class & enroll
Limited cohort · enrollment openTarget Test Prep
EALiveTeach 5 seats left
Logan Thompson
EXECUTIVE ASSESSMENT

Sep 6 to Dec 6, 2026

with Logan Thompson

Schedule
Sun · 9:30 AM to 12:30 PM ET
Included
40 hours of live online classes plus six months of access to the complete TTP EA OnDemand course.
  • 165+ EA Score Guarantee
  • 4,100+ Quant, Verbal, and Integrated Reasoning practice questions
  • 400+ hours of in-depth video lessons
  • 3,000+ step-by-step video solutions
View EA class & enroll
Limited cohort · enrollment openTarget Test Prep
GMATOnDemand Start anytime
SELF-PACED MASTERCLASS

Target Test Prep GMAT OnDemand

Complete access from day one. Study on your schedule.

715+ score guarantee
$0to start then $127/mo
  • Personalized study plan and analytics
  • Thousands of lessons and practice questions
Start free 5-day trial
Read 559 reviewsTarget Test Prep

Compare the format, schedule, and included access before enrolling. Prices and seat counts shown reflect the supplied offer details.

Co-ordinate geometry

Problem Solving — algebra and arithmetic (GMAT Focus Edition)
Expert replies
Post new topic Post Reply
Previous Topic Next Topic
User avatar
Legendary Member
Posts: 643
Joined: Wed Aug 14, 2013 4:27 amFollowed by: 7 members
Thanked: 48 times
by vinay1983 » Thu Oct 10, 2013 10:47 pm
Slope = rise/run = is it (y1-y2)/(x1-x2) or (y2-y1)/(x2-x1)? does it change anything?

For distance between points formula √(x1-x2)+(y1-y2) or √(x2-x1)+(y2-y1). Does the oder matter here similar to my above question.

Thanks
You can, for example never foretell what any one man will do, but you can say with precision what an average number will be up to!
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Source: — Quantitative Reasoning |

GMAT/MBA Expert

User avatar
GMAT Instructor
Posts: 768
Joined: Wed Dec 28, 2011 4:18 pmFollowed by: 140 members
Location: Berkeley, CA
Thanked: 387 times

by Mike@Magoosh » Fri Oct 11, 2013 10:36 am
vinay1983 wrote:Slope = rise/run = is it (y1-y2)/(x1-x2) or (y2-y1)/(x2-x1)? does it change anything?

For distance between points formula √(x1-x2)+(y1-y2) or √(x2-x1)+(y2-y1). Does the oder matter here similar to my above question.

Thanks
Dear vinay1983,
I'm happy to help. :-)

Here's a blog about slope:
https://magoosh.com/gmat/2012/gmat-math- ... x-y-plane/
First of all, in the slope equations you quoted, it doesn't matter. (4-3)/(8-7) = (3-4)/(7-8). If you reverse the order of subtraction in both the numerator and the denominator, the value of the overall fraction remains unchanged.
Actually, I would recommend just using the idea slope - rise/run, and thinking about it visually, rather than relying exclusively on a very algebraic formula.

For distance, I think memorizing that formula is a unholy abomination. Here's what I recommend instead:
https://magoosh.com/gmat/2012/gmat-coord ... wo-points/

Does all this make sense?
Mike :-)
Magoosh GMAT Instructor
https://gmat.magoosh.com/
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Post new topic Post Reply
• Page 1 of 1