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
Vote for Target Test Prep, Newsweek Readers’ Choice Awards 2026
NEWSWEEK READERS’ CHOICE 2026

BIG NEWS! Target Test Prep has been nominated, and they’d love your vote!

TTP has worked incredibly hard to build the best test prep experience possible, and winning Newsweek’s 2026 Readers’ Choice Award for Best Test Prep would mean a lot to them. If TTP has helped you, they’d be incredibly grateful for your vote. You can vote once each day through September 9.

Vote for TTP
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.

gmat sets DS II

Expert replies
Post new topic Post Reply
Previous Topic Next Topic
Senior | Next Rank: 100 Posts
Posts: 95
Joined: Wed Mar 10, 2010 3:23 amFollowed by: 1 member
Thanked: 1 times
by clammiestqasar » Mon Aug 23, 2010 7:04 am
In the xy-plane, what is the slope of line l?
(1) Line l dose not intersect the line with equation y = 1 - x.
(2) Line l intersects the line with equation y = x - 1.

A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
D. EACH statement ALONE is sufficient.
E. Statements (1) and (2) TOGETHER are NOT sufficient.
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Source: — Data Sufficiency |
Senior | Next Rank: 100 Posts
Posts: 50
Joined: Sun Aug 15, 2010 3:00 pm
Thanked: 4 times

by Makushr1 » Mon Aug 23, 2010 7:10 am
clammiestqasar wrote:In the xy-plane, what is the slope of line l?
(1) Line l dose not intersect the line with equation y = 1 - x.
(2) Line l intersects the line with equation y = x - 1.

A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
D. EACH statement ALONE is sufficient.
E. Statements (1) and (2) TOGETHER are NOT sufficient.
Answer is A.

1) The only way for a line to never intersect with another line is it they are parallel.
2) no idea what the slope is, other than it's not y=x-1
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Senior | Next Rank: 100 Posts
Posts: 95
Joined: Wed Mar 10, 2010 3:23 amFollowed by: 1 member
Thanked: 1 times

by clammiestqasar » Mon Aug 23, 2010 6:17 pm
how can the ans be A if we cannot determine the slope from the given information?
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Senior | Next Rank: 100 Posts
Posts: 50
Joined: Sun Aug 15, 2010 3:00 pm
Thanked: 4 times

by Makushr1 » Tue Aug 24, 2010 5:00 am
clammiestqasar wrote:how can the ans be A if we cannot determine the slope from the given information?
If 2 lines on a plane never intersect, they are parallel. So, since A states the line doesn't intersect with another line with the equation y=1-x, line L's equation must also be y=1-x
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
User avatar
Junior | Next Rank: 30 Posts
Posts: 11
Joined: Wed Aug 11, 2010 1:46 pm

by von » Tue Aug 24, 2010 5:28 am
What's the OA?
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Senior | Next Rank: 100 Posts
Posts: 95
Joined: Wed Mar 10, 2010 3:23 amFollowed by: 1 member
Thanked: 1 times

by clammiestqasar » Thu Aug 26, 2010 12:59 am
WHy cant the equation be something else?THey are parallel lines and not identical lines?
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Legendary Member
Posts: 2326
Joined: Mon Jul 28, 2008 3:54 amFollowed by: 2 members
Thanked: 173 times
GMAT Score:710

by gmatmachoman » Thu Aug 26, 2010 1:42 am
Makushr1 wrote:
clammiestqasar wrote:how can the ans be A if we cannot determine the slope from the given information?
If 2 lines on a plane never intersect, they are parallel. So, since A states the line doesn't intersect with another line with the equation y=1-x, line L's equation must also be y=1-x
For parallel lines : m1 = m2

having said that, its not necessary that intercepts are going to be the same:

L1 : y = 3x +3

L2 ; y = 3x + 5

L3: Y = 3x +15

All L1,L2,L3 are parallel , means they wont intersect. They have same slope ( 3) in the above example.

A is sufficient as we can identify the slope.
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Senior | Next Rank: 100 Posts
Posts: 50
Joined: Sun Aug 15, 2010 3:00 pm
Thanked: 4 times

by Makushr1 » Thu Aug 26, 2010 4:49 am
clammiestqasar wrote:WHy cant the equation be something else?THey are parallel lines and not identical lines?
They don't have the same intercept, but that itsn't the question. The question is asking if the SLOPE is the same. If 2 lines never intersect on a plane, they must be parallel. Parallel lines have the same slope.
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Master | Next Rank: 500 Posts
Posts: 117
Joined: Wed Jun 09, 2010 7:02 am

by missrochelle » Thu Aug 26, 2010 6:25 pm
i think the key point missing here is that if there are 2 lines in an xy plane, they either intersect or are parallel. those are the only two options. if they dont intersect, then they are parallel and have the same slope.
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Master | Next Rank: 500 Posts
Posts: 117
Joined: Wed Jun 09, 2010 7:02 am

by missrochelle » Thu Aug 26, 2010 6:26 pm
i think the key point missing here is that if there are 2 lines in an xy plane, they either intersect or are parallel. those are the only two options. if they dont intersect, then they are parallel and have the same slope.
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Post new topic Post Reply
• Page 1 of 1