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y=mx+b Question: What is b? 1) m=3b - insufficient 2) x intercept =-1/3 - y intercept could be positive or negative depending on the slope of the line. Insufficient. Together: we have a point x intercept (-1/3,0), plug it into the y=mx+b equation: 0=m(-1/3)+b Using stmt 1--> 0=3b(-1/3)+b - we can so...

by iwant700plus

Sun Mar 29, 2009 5:58 pm
Forum: Data Sufficiency
Topic: Y Intercept Of Line
Replies: 7
Views: 3814

Sorry to hear about what happened to you gmat700plus. Stacy, tanks so much for the suggestions. I have noticed that when I took practice tests and wrote out the essays, i scored much lower than I did when I did not put time into essays. I guess that break is very important. Will try to use some of t...

by iwant700plus

Fri Mar 27, 2009 2:29 pm
Forum: I just Beat The GMAT!
Topic: From ~740 on practice exams to 570 on real exam
Replies: 29
Views: 8887

ok, what's the question?

by iwant700plus

Thu Mar 05, 2009 8:26 am
Forum: Critical Reasoning
Topic: Average diet
Replies: 2
Views: 1522

Good explanation karma yogi. I also get C.

by iwant700plus

Thu Mar 05, 2009 8:18 am
Forum: Critical Reasoning
Topic: translation
Replies: 3
Views: 1489

IMO answer is B.

If we were to know that the same tranquilizer that's used on the rhinos also has the same effects (inhibits fertility) when used on other large mammals, then our conclusion that there is something in the tranquilizer that inhibits fertility would be true.

What's the OA?

by iwant700plus

Thu Mar 05, 2009 7:49 am
Forum: Critical Reasoning
Topic: A tricky one or an easy one?
Replies: 11
Views: 2432

I learned in my GMAT class that in sentences like these, usually the GMAT tried to introduce new words that are better than those used in the original sentence. They introduce the new language so that the sentence might sound more concise than without the language. I had chosen B over E because I wa...

by iwant700plus

Wed Mar 04, 2009 6:34 pm
Forum: Sentence Correction
Topic: African Wildcat
Replies: 10
Views: 2316

There is plenty of free material on the web that already covers that. Why would I pay $20 for that sheet?

by iwant700plus

Wed Mar 04, 2009 6:44 am
Forum: GMAT Math
Topic: GMAT Math Overview/Formulas/Concepts
Replies: 13
Views: 16241

I also think its B. The mayor's reasoning is that if he imposes the fee, the bus will be less expensive than the car, therefore people who are using cars will switch. But B tells us that these people are already paying more than the cost of the bus, if you include parking. Mayor's argument falls apa...

by iwant700plus

Tue Mar 03, 2009 3:38 pm
Forum: Critical Reasoning
Topic: Can this really be right?
Replies: 5
Views: 1868

I think D is a trap. In the argument, we are told that the amount of insecticide needed per acre to control insect pests was only slightly lower so it doesn't matter how many acreage of cotton each type has, what matters is the comparative cost of the insecticide. IMO In evaluate the argument questi...

by iwant700plus

Tue Mar 03, 2009 11:31 am
Forum: Critical Reasoning
Topic: genetic modifications to cotton
Replies: 22
Views: 15283

I also get A. What's the OA?

by iwant700plus

Tue Mar 03, 2009 8:36 am
Forum: Critical Reasoning
Topic: Alligator
Replies: 14
Views: 2626

Re: sets

The best way is to draw two sets that intersect (see my attachment). It's easy to visualize that what you are looking for is the area outside of the intersection which is given by 30/400+30/400=3/20 400 people join the local gym. 60 people take aerobics, 60 people take yoga. Of these, 30 people take...

by iwant700plus

Mon Mar 02, 2009 2:46 pm
Forum: Problem Solving
Topic: sets
Replies: 2
Views: 1025

Here is how I approached this argument. Conclusion: It is untenable that contact sports encourage and teach participants to be hostile.-->Contacts Sports Cause Hostility Translated to: give me support that Contact Sports are not the cause of the hostility. A is the only one that supports this conclu...

by iwant700plus

Thu Feb 26, 2009 3:15 pm
Forum: Critical Reasoning
Topic: Psychological research 1000CR
Replies: 3
Views: 2780

IMO, the answer is E.

by iwant700plus

Thu Feb 26, 2009 2:40 pm
Forum: Sentence Correction
Topic: question
Replies: 6
Views: 1542

I was stuck between A and E as well, but chose E because of the fight with water claim. That showed that fire with fire (the disinformation) wasn't effective... thanks for the replies. actually i was in dilemma regarding option (A). option (E) seemed a bit "strong". moreover the author onl...

by iwant700plus

Mon Feb 23, 2009 4:16 pm
Forum: Critical Reasoning
Topic: Disinformation Campaign
Replies: 6
Views: 4358

Re: Letter from chairman

By POE, I got to D. My explanations below. When I saw that it was an inference question, I approached it the same way I do in RC questions. in RC, you have to demonstrate that the information you are inferring is found somewhere in the passage. I think you are thinking of the weaken/strengthen type ...

by iwant700plus

Mon Feb 23, 2009 3:00 pm
Forum: Critical Reasoning
Topic: Letter from chairman
Replies: 4
Views: 1775