Solutions

Flipping Functions, Be Gone With You

 

Almost eight months in -- and I think I may possibly be getting closer to conquering these suckers.

Let's just say this: no tears were shed today.

PWNtheSAT says I have until Monday, and then we're moving on to triangles.  Yikes -- my other pain point.

I actually went so far as to pull every single function related problem out of the Blue Book (i.e. nested, graph, table, symbol, word, and parabola), and I'd say I'm about 3/4 of the way through with them --  to the point of being able to explain them to someone else.

Tomorrow I'm hitting the graphs, which feels like a walk in the park as compared to the nested functions of today.

The nesters still give me the biggest pain in the neck.  i.e., these little guys:

 

In case this is helpful for anyone, here is my rendition of a "Nested Function" recipe:

 

I keep this (and other recipes) hanging on the walls all over my house.

NOTE: If you actually don't understand functions, PLEASE be sure to see a more legit recipe: PWNtheSAT

 

Illustrations by Jennifer Orkin Lewis

(Ev, this one's for you.)

 

 
22 Comments | posted August 12th, 2011
 
 
  • Guest

    Hi, from what page is that problem ? I'd like to try it?

    • http://www.perfectscoreproject.com Debbie Stier

      It's Test 10, Section 5, Problem 19.  I don't have a BB in front of me....but if you can't find it-- let me know.

      • Guest

        Thanks I found it ,but on page  860  Section 5 , problem 19 and Test #8. I'm currently reviewing the math section on test #6 , but I'll try to solve this problem when I can, and I'll tell you how it went .

        • http://www.perfectscoreproject.com Debbie Stier

          Really? Are you using the new Blue Book?

          • Guest

            yes. and I'm currently trying to understand a problem that's about finding the weight of a puppy.

          • http://www.perfectscoreproject.com Debbie Stier

            Will you post it in the comments?

          • Guest

            the answer of the puppy problem? or the answer to the problem above?? If I can solve it … I will :)

          • http://www.perfectscoreproject.com Debbie Stier

            The puppy problem.  I want to try!

          • GUEST

            the puppy problem reads like this and the answer is (tried to search for the best explanation) : 
            A certain scale only registers weights that are greater  than 6 pounds. A Person  who wanted  to know  the weights of a puppy, a kitten , and a  bunny  weighted them in pairs and got the following results.
            The kitten and the Bunny weighted 7 pounds.
            The kitten and the Puppy weighted 8 pounds.
            The Bunny  and the  puppy  weighted 9 pounds.
            what is the weight of the puppy?
            A. 2 pounds B. 3 pounds. c. 4 pounds d. 5 pounds e. 6 pounds

            Answer is D: 5 pounds.

            How to solve it ;

            K+B+K+P= 7+8 
            2K+(B+P)=15
            K=3 
            K+P= 8
            3+P =8
            P= 5

          • http://blog.pwnthesat.com PWN the SAT

            I'd avoid solving the puppy problem algebraically. It's a headache.

            Kitten and bunny weigh 7 pounds; kitten and puppy weigh 8 pounds. So the puppy must be one pound heavier than the bunny. If the bunny and the puppy together are 9 pounds, and the puppy is one pound heavier than the bunny, then the puppy must be 5 pounds, and the bunny must be 4.

          • Guest

            Thanks that actually helped!!! it's much simpler put that way :)

          • http://blog.pwnthesat.com PWN the SAT

            ::curtsy::

          • http://www.perfectscoreproject.com Debbie Stier

            ok, I'm printing this out now....and trying not to look at @PWNtheSAT:disqus response first.  I just saw that my Algebro said don't use algebra, so I'll take it from there.

            Thank u for posting ;) 

          • Guest

            The correct answer from the problem above is choice E.

          • Guest

            yes. and I mean't no, I'm using a battered old version. why? is the New version Better?

          • http://www.perfectscoreproject.com Debbie Stier

            I have no idea if old version or new version is better (I've never seen the old version)!  Just making sure I didn't get the test number wrong ;)

          • Guest

            ah ok. I've seen the Newer Version, but haven't really bothered to browse through it thoroughly…. much less  replace the old version for the new version.
            I do think that it's genius that it comes with two extra test now. (That means extra Tests)

          • http://www.perfectscoreproject.com Debbie Stier

            Gotta keep them in business ;)

          • Guest

            yeah… The problem above is very hard. I'm trying to solve it

          • http://twitter.com/akilbello Akil Bello

            old version and new version are the same but the newer version has a couple extra tests.. if i recall properly maybe they removed one test and added 3 something like that.. 90% overlap

  • http://twitter.com/akilbello Akil Bello

    that problem look familiar!

    • http://www.perfectscoreproject.com Debbie Stier

      They all start to look familiar, right?  I was doing a Writing Section today, and it was not from the blue book, but I swear to you, I KNOW that section -- but I don't know how I could have known that section.  But I do.  Unless I I'm losing my mind (which is possible).  I haven't left the rabbit hole (aka my new office) in almost a week.  I go out once a day for yoga, that's it.  Besides that, the kids can be raise by wolves as far as I'm concerned.  I'm so happy down here, I could cry.

 

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