barrons practice worth it? also, help on 2007-2008 "preparing for the act"

Test Preparation ACT Preparation
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<p>i have 2 barrons act books (2007 and 2001, i think). theyre the only ones that my library has (other than PR, which i’ve done). i could buy a book, but i dont think its really worth the time. i’ve gone through all of the practice tests that i have, so i’m moving on to barrons. however, its so f-ing hard; i scored a 24 on english. also, there are types of questions on it that ive never seen before on an act practice test (and ive taken 7), like secants and other obscure geometry stuff. so, is it really worth my time? i have 3 precious days to study, but i dont want to practice on something that is not worth the time. on the other hand, barron’s difficulty does give one an easy time on the actual test. </p>

<p>right now, my pace is about 2 tests a day, so i could do the barrons, or i could do some online practice tests (like the arco ones, or sparknotes). i could also just buy a kaplan book or some other brand that i havent used yet. i’m rambling now. so barrons, yea or nay? should i just use it for math/science?</p>

<p>and for the 2007-2008 “preparing for the act” paper booklet from guidance counselors, i need help on 2 math questions. heres a link to the booklet, its on pages 32-33. <a href=“http://www.act.org/aap/pdf/preparing.pdf[/url]”>http://www.act.org/aap/pdf/preparing.pdf</a></p>

<li><p>i picked -1 < or equal to x, and 3 > or equal to x. however the answer is actually -1 > or equal to x and 3 < or equal to x. could someone explain that?</p></li>
<li><p>the answer is d, but i dont get how they got it; me and waves just dont click.</p></li>
<li><p>i just dont get this one.</p></li>
</ol>

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<p>in 49, x is less than or equal to -1 thus -1> or equal to x</p>

<p>55, you have to know sine and cosine graphs to do this, both graphs are going in the positive directions for cosine and sine (not flipped over the x-axis).</p>

<p>a1 is larger than a2 thus 0<a2<a1 thus its B.</p>

<p>59, this deals with even/odd functions. The answer is E. I really can't explain it so if you would like to understand look at this page Even</a> and odd functions - Wikipedia, the free encyclopedia</p>

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<p>thank you</p>

<p>10char</p>

<p>edit: do i need to know much about even/odd functions other than an odd function is like an s at the origin and an even function is like a u (excuse the elementary comparisons). in other words, do i just need to know how to point them out based on the images on wiki.</p>

<p>edit again: holy crap, that wave one seems so easy now.</p>

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<p>first off not all odd functions are "s" (though a majority do look like an "s") for instance the sin function is and odd function. </p>

<p>You probably won't need to point them out but it may be helpful to understand the principle behind them.</p>