GRE Prep 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.
Points (a, b) and (c, d), not shown in the figure above, are in quadra
[#permalink]
07 Dec 2022, 13:40
07 Dec 2022, 13:40
Expert Reply
00:00
Question Stats:
70% (01:31) correct
30% (01:22) wrong based on 10 sessions
Hide Show timer Statistics
Attachment:
GRE Points (a, b) and (c, d), not shown in the figure above,.jpg [ 11.83 KiB | Viewed 1452 times ]
Points (a, b) and (c, d), not shown in the figure above, are in quadrants I and III, respectively. If abcd ≠ 0, then the point (−bd, bc) must be in which quadrant?
I
II
III
IV
It cannot be determined from the information given.
Re: Points (a, b) and (c, d), not shown in the figure above, are in quadra
[#permalink]
11 Dec 2022, 03:00
11 Dec 2022, 03:00
Expert Reply
OE
Plug in points in the appropriate quadrants. If (a, b) = (1, 2) and (c, d) = (−3, −4), then the point in question is (−bd, bc) = [−(2)(−4), (2)(−3)] = (8, −6), which is in quadrant IV. Since “it cannot be determined from the information given” is an answer choice, plug in again to confirm that the result will be in quadrant IV. The correct answer is choice (D).
Plug in points in the appropriate quadrants. If (a, b) = (1, 2) and (c, d) = (−3, −4), then the point in question is (−bd, bc) = [−(2)(−4), (2)(−3)] = (8, −6), which is in quadrant IV. Since “it cannot be determined from the information given” is an answer choice, plug in again to confirm that the result will be in quadrant IV. The correct answer is choice (D).
gmatclubot
Re: Points (a, b) and (c, d), not shown in the figure above, are in quadra [#permalink]
11 Dec 2022, 03:00
Moderators:
