Help w/ math if you have the blue book

Test Preparation SAT Preparation
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<p>i can't really draw the problems, wondering if anyone can help me out with</p>

<h1>15 and #16 on page 551 practice test 3 section 8 in the blue book</h1>

<p>thanks if you can.
=)</p>

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<p>p. 551 </p>

<h1>15: The first thing I did was look at the graph. Okay, so I'm looking for an equation for a function? No, that couldn't be. The darn thing doesn't even pass the vertical line test! Thus, I looked for input/output (as that is truly what an equation for a function is). (t, w) is used as (x, y)...so if my input is x=1, what do I get out of it? The same thing! Therefore, in function notation...f(x)=1</h1>

<p>t(1)=1
The answer is A.</p>

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<p>are you looking at the same thing?</p>

<p>Maze completion times of the hamsters it does have a graph tho</p>

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<p>Yes, I am...
The answer is A, btw. (:</p>

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<h1>16: So the first thing I did was examine the picture...take some mental notes and the like. Alright. So, I see that for every 2 L's there is 3 W's. That is important. So, I find out the current dimensions of the figure in terms of L. That would be 2/3L+L (width)*2L (height)=3.33...L</h1>

<p>3.33 equals 3+1/3...so, there's your mixed fraction.
Now how many of these patterns do we need to get to 120L^2?
If 3.33 (3+1/3)=1 pattern, just set up a cross multipication deal.
3.33x/3.33=120/3.33 (I used fractions, and just multiplied by the reciprocal, by the way, but for simplicity's purpose, I'll use the decimals).
So I find out I need 36 patterns to achieve 120 L^2.
Cool.
Except I don't need how many PATTERNS - I need how many rectangles. heh, so the first pattern has 5 rectangles, I need 36 patterns..
36*5=180; E.</p>

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<p>nvm i got it.</p>

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<p>The 44 came from input/output. Simply, if you have input 44, you will get output 44. That's all. (:</p>

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<p>I wholeheartedly recommend checking <a href="http://talk.collegeconfidential.com/sat-preparation/339734-consolidated-list-blue-book-math-solutions-3rd-ed.html%5B/url%5D"&gt;http://talk.collegeconfidential.com/sat-preparation/339734-consolidated-list-blue-book-math-solutions-3rd-ed.html&lt;/a> for explanations.</p>