Events & Promotions
|
|
GMAT Club Daily Prep
Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.
Customized
for You
Track
Your Progress
Practice
Pays
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
Sep 1507:00 PM EDT
-09:00 PM EST
Elite scores are possible when you enroll in a powerful GMAT course, taught live online + 6 months access to TTP OnDemand video courses included! Class starts Tues/Thurs Sept. 15, 2026 - Nov. 15, 2027, 7:00pm-9:00pm EST
Sep 2107:00 PM EDT
-10:00 PM EDT
Boost your GMAT score in less than one month in a live online class + 6 months access to TTP OnDemand video courses included! Class starts Mon, Tues, Wed, Thur, Fri Sept. 21, 2026 - Oct. 9, 2027, 7:00pm-10:00pm EST
21 Nov 2019, 01:35
Kudos
Bookmarks
C
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
55%
(hard)
Question Stats:
58% (01:46) correct
42%
(01:27)
wrong
based on 79
sessions
History
Date
Time
Result
Not Attempted Yet
In the XY-coordinate plane, is the product of slopes of line L and line K negative?
(1) The product of the x-intercepts of line L and K is positive.
(2) The product of the y-intercepts of line L and k is negative.
(1) The product of the x-intercepts of line L and K is positive.
(2) The product of the y-intercepts of line L and k is negative.
21 Nov 2019, 03:35
Kudos
Bookmarks
Raxit85
Explanation:
gmatbull Thanks, I still remember your answer for this type of question.
Follow Attachments:
Let M1 and M2 represent the gradients of lines K and L
(1)
from sketch (i), M1*M2 < 0
from sketch (ii), M1*M2 > 0
INSUFFICIENT
(2)
from sketch (i), M1*M2 < 0
from sketch (iii), M1*M2 > 0
INSUFFICIENT
Combining (1) and (2):
ONLY sketch i) satisfies --> SUFFICIENCY
option C is therefore correct
Pls provide kudos, if you find my explanation good enough Attachments
intersecting lines K and L.docx [11.19 KiB]
Downloaded 126 times
18 Sep 2021, 07:51
Kudos
Bookmarks
Raxit85
Statement 1:
The slope of lines L and K could be anything. Insufficient.
Statement 2:
The slope of lines L and K could be anything. Insufficient.
Combined:
If we have two positive x-intercepts, lines L and K will have 1 positive slope and 1 negative slope.
If we have two negative x-intercepts, lines L and K will still have 1 positive slope and 1 negative slope.
Either way, the product of slopes is negative. Sufficient.
Ans: C
