December 14, 2018 December 14, 2018 09:00 AM PST 10:00 AM PST 10 Questions will be posted on the forum and we will post a reply in this Topic with a link to each question. There are prizes for the winners. December 14, 2018 December 14, 2018 10:00 PM PST 11:00 PM PST Carolyn and Brett  nicely explained what is the typical day of a UCLA student. I am posting below recording of the webinar for those who could't attend this session.
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If x is an integer and y = –3x + 7, what is the least value of x for
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21 May 2017, 11:36
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81% (00:56) correct 19% (01:01) wrong based on 199 sessions
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Re: If x is an integer and y = –3x + 7, what is the least value of x for
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21 May 2017, 11:48
The least value of x for which y is less than 1 is 3. y = 3x+7 = 3(3) + 7 = 2. Option A and B yields positive value . Option D and E gives ve value but not the least value when compared to option C. Hence answer is option C .
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If x is an integer and y = –3x + 7, what is the least value of x for
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21 May 2017, 16:08
Bunuel wrote: If x is an integer and y = –3x + 7, what is the least value of x for which y is less than 1?
(A) 1 (B) 2 (C) 3 (D) 4 (E) 5 y=3x+7 if y=1, then x=2 if y<1, then x>2 least value of x=3 C



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Re: If x is an integer and y = –3x + 7, what is the least value of x for
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21 May 2017, 22:17
If y < 1, it means 3x + 7 <1 3x < 6
Dividing both sides by 3 x > 2
Minimum integer value greater than 2 is 3. So minimum value x can take is 3.
Hence answer is C



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Re: If x is an integer and y = –3x + 7, what is the least value of x for
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21 May 2017, 23:26
Quickest way to solve such question is using Ans option. Substitute answer options into the equation.
Ans : C



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Re: If x is an integer and y = –3x + 7, what is the least value of x for
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21 May 2017, 23:42
Bunuel wrote: If x is an integer and y = –3x + 7, what is the least value of x for which y is less than 1?
(A) 1 (B) 2 (C) 3 (D) 4 (E) 5 y = 3x + 7 < 1 3x > 6 x > 2 so for y<1, x>2.. So, x = 3
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Re: If x is an integer and y = –3x + 7, what is the least value of x for
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23 May 2017, 08:17
If x is an integer and y = –3x + 7, what is the least value of x for which y is less than 1? (A) 1 (B) 2 (C) 3 (D) 4 (E) 5 two ways to solve the problem 1. Number plugging y = –3x + 7 given that y < 1 –3x + 7 < 1 Now substitute the value of x such that the value of on left hand side of the equation must be less than 1 let say x =1 , then –3x + 7 = 4 x=2 , then –3x + 7 = 1 x=3 , then –3x + 7 = 2 the least value of x for which y is less than 1 , so x= 3 2 . solve the inequality y = –3x + 7 , given that y < 1 therefore –3x + 7 < 1 x< 2 therefore for the minimum value of x is 3 C is the answer . Regards, Press Kudos if you the post .
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Re: If x is an integer and y = –3x + 7, what is the least value of x for
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23 May 2017, 16:18
Bunuel wrote: If x is an integer and y = –3x + 7, what is the least value of x for which y is less than 1?
(A) 1 (B) 2 (C) 3 (D) 4 (E) 5 Let’s analyze each answer choice: A) x = 1 y = 3(1) + 7 = 4 B) x = 2 y = 3(2) + 7 = 1 C) x = 3 y = 3(3) + 7 = 2 Since 2 is the first negative value for y, we can stop here. The least value for x that makes y negative is 3. Alternative solution: Since y = –3x + 7 and we want y to be less than 1, we have: –3x + 7 < 1 –3x < –6 x > 2 The least integer that is greater than 2 is 3, so x = 3. Answer: C
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Re: If x is an integer and y = –3x + 7, what is the least value of x for
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10 Jun 2018, 10:35
Bunuel wrote: If x is an integer and y = –3x + 7, what is the least value of x for which y is less than 1?
(A) 1 (B) 2 (C) 3 (D) 4 (E) 5 Back solving is the way to deal with this question. But before doing so, we have to mark the word least value of x and y is less than 1. Only option C works. This the least value of x and for this value y is less than 1. Thus the best answer is C.




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