--SAT II MATH II Review Thread--

Test Preparation SAT Subject Test Preparation
1

<p>I have this one book (Not Kaplan, Barron’s, or from any other well known prep companies) that my mom bought me and it basically covers both SAT math and SAT II Math II. This one person used the book my mom bought me and studied it in a week and got an 800. I have studying it right now and I have some questions. I will post some questions that I do not get and it will be a great review for me and for you. Please explain step by step; I have all the answers and I am asking these questions because either I do not know where to start or to find a faster way to solve it.</p>

<p>So here are the questions:

  • (<em>) will be represented as equal to. Ex: ></em> greater than or equal to </p>

<li><p>Graph each function for the given domain.
f(x)=<a href="-1%3C*x%3C8">1/2x</a></p></li>
<li><p>What is the value of a+b
This is suppose to be a chart:</p>

<h2>x/ y=f(x)=mx+b</h2>

<h2>2/ 9 ]</h2>

<h2>3/ a ]</h2>

<h2>4/ b ]</h2>

<p>5/ 15 ]</p></li>
<li><p>f(x)=x/x+2, g(x)=x-3/x
f(g(x))=?</p></li>
<li><p>f(x)=2x-3, h(x) and v(x) are linear functions.
h(f(x))=x+1, h(x)=?</p></li>
<li><p>Solve for x.
(square root of 2x+1) + (square root of x-3) = 4</p></li>
<li><p>Alright for this question, I HAVE NO IDEA how to approach this. I have learned a little bit of imaginary numbers in like Algebra 2 and I totally for got them all. </p></li>
</ol>

<p>a) i^5+i^6+i^7=?</p>

<p>b) Square root of -16=?</p>

<p>c) (2+i)(3-i)=?</p>

<li>Alright these are just simple quadratic equations, but I forgot how to approach questions with integers in front of the x^2. Please if you can, explain it to me the long way and then the short cut way. </li>
</ol>

<p>Solve for x.
a) 3x^2-5x-1=0</p>

<p>b) 6x^2-5x-6=0</p>

<li><p>Find the sum and product of the zeros.
3x^2-7x+2=0</p></li>
<li><p>Specify the vertex and intercepts.
a) y=2x^2-12x-5</p></li>
</ol>

<p>b)y=-x^2+6x</p>

<li>The graph of y=ax^2+bx+c is shown above (The graph is basically a quadratic formula facing up and it is located in the fourth quadrant. The left x-intercept hits on the negative side, around -3, and the right x-intercept hits on the positive side, around 9.) Which of the following is true?
I. a<0
II. b<0
III. c<0</li>
</ol>

<p>a) None
b) I only
c) II only
d) I and II
e) II and III</p>

<p>The answer is e</p>

<hr>

<p>That is all, thank you.
I will post more questions when I stumble on some hard questions. </p>

<p>If you need the answers just ask and I will post them.</p>

2

<p>Are the questions way too hard or what?</p>

3

<p>these questions are actually EXTREMELY easy. it’s just that no one feels like answering 10 questions, including me.</p>

<p>i’m guessing you’ve never taken precalc?</p>

4

<p>AH That is why, I totally understand why you guys are not answering these questions.</p>

5

<p>Ehh, I have a question. I took one practice test from an old Arco review book and I almost died =.= then I took the one in the CollegeBoard Guide to all Subject Tests and it was so easy… is it that the CB one is dumbed down, or the Arco one is deliberately harder?</p>

6

<p>^ I agree those problems are very easy. But if you really want help consider posting fewer (not more than 3) problems at a time.</p>

<ol>
<li><p>Get out your graphing calculator and graph the functions putting the domain in the “window”.</p></li>
<li><p>I’m not sure I understand the question, but it seems like you need to use a liner regression. Again get out the calculator store the values in a list, then evaluate them.</p></li>
</ol>

7

<p>How do I graph question number one on a TI-86 :\ ???</p>

8

<p>Well, I don’t have a 86, but I assume it’s pretty much the same as a 84. First of all there is NOT going to be a question like #1. I mean how would you get a answer? There is no question being asked. Secondly, you shouldn’t even need a calculator to make a quick table - I mean seriously F(x) = 1/2X is so easy that you shouldn’t be taking the test if you don’t know how to do it. But suppose it was a really question like “How many times does 2Cos(11x) intersect the line y = 1.25 between 0 and 360?”
To get the answer go to “Window” and set X min at 0 and X max at 360 then count how many times it crosses!</p>

9

<p>Those aren’t that bad. Is that what one can expect to find on the test? It looks like it’s just quadratics.</p>

10

<p>These are just ones that you said you needed help with:</p>

<p>a) i^5+i^6+i^7=? i^5+6+7 = i^18 = -1</p>

<p>b) Square root of -16=? 4i</p>

<p>c) (2+i)(3-i)=? FOIL 6-2i+3i-i^2= 6+i-(-1)= 7+i</p>

<p>Solve for x.
a) 3x^2-5x-1=0</p>

<p>b) 6x^2-5x-6=0</p>

<p>Graph them and find the zeros.</p>

11

<p>yo spratleyj u r right… maybe I should have asked fewer questions at a time… and mind if I pm you for some of the questions that I do not get??</p>

12

<p>You can PM them, and I’ll look at them but I’m not making any promises…</p>

13

<p>Are you sure you should be taking Math II? Because these are typical problems, and many on the test are more difficult.</p>

14

<p>lockn: Are the majority of questions the same or harder than the ones the OP gave?</p>

15

<p>Yeah…I don’t think a week is going to cut it. Most of this stuff is simply logic…they are more or less simple definition type questions, such as #3, where you should know to plug in g(x) for the values of x in f(x) in order to get f o g(x), which you should know is another way of writing f(g(x)). </p>

<p>Just for fun, here’s #2</p>

<p>a+b=24 because the equation shows it to be linear. Therefore, it has a slope.
Using the first and fourth table entries, the slope is the difference in y divided by the difference in x. This ends up as 6/3, or 2. Now, you can either solve the equation or simply add 2 to y for every 1 you add to x. Doing this to the first point, you get points (3,11) and (4,13). and you find that 11 and 13 are a and b respectively, simply add them.</p>

16

<p>^ Yes most of the questions are harder than those.</p>

17

<p>hey!
how difficult is this test compared to the math section on the regular SAT?
example: if I got an 800 and As in Trig/CalcA this year, would I be set?</p>

18

<p>I think you’d do pretty well. at least 750.</p>

19

<p>

There are three difficulty levels, “easy”, “medium”, and “hard”. Almost all of these would be considered easy. (2), for example, is probably medium.</p>

20

<p>Anyone have the Princeton book want to explain pg 147 # 36 on how BE is hyp of a 5-12-13? Book offers no explanation. Shouldn’t the side be 4?</p>