Math Level II December 3, 2011 Curve/Discussion

<p>Laurier
I think if was (x-3)^2 + (y+1)^2 = 25 shifted 5 units right and 2 units down, making the answer (D) (x-8)^2 + (y+3)^2 = 25</p>

<p>Dec 24th. answer my question plz?</p>

<p>I was confused by the circle one because you don’t add 2 to move the circle down!</p>

<p>its the center. just move the center and the circle moves along with it</p>

<p>physicsboy32
From what I remember, 0.92 was choice D. Some other answer choices were 0.35, 0.71, 0.65 (or 0.85?)</p>

<p>dam it! D;<</p>

<p>you guys remember the question that asked for the graph of the function after -|f(x)|? i think i put B for that one</p>

<p>i think i put D, not sure.</p>

<p>. How many years will it take for population to go over 6million. Everyone says four or three but I could have sworn it was 5 (option E). Maybe i made a stupid mistake.</p>

<p>I got 4 years.</p>

<p>and how about the one with the graphs of f(x) and f(x+2). was it II and III?</p>

<p>Yes it was 4 years. But the circle one made no sense. It said move the circle right 5 and down 2, and so that would be (x-8)^2 + (x-1)^2 = 25… but that wasn’t an option…</p>

<p>My raw score is a 44 so far according to these answers. damit. might cancel</p>

<p>@chopstick</p>

<p>i got that</p>

<p>@hubrid. </p>

<p>what was the original center?</p>

<p>spookie123
for the y^5 equation, you had to find the number of x-ints, so you just had to let y =0 and solve the equation with only x’s left in it, which was simply -2x=x^2, which has two answers.</p>

<p>^I agree</p>

<p>10 char</p>

<p>Do you guys remember this question? sin x < cos x<br>
was the answer 0<x<45</p>

<ol>
<li>D = RT Question: 53 and 1/3</li>
<li>Question #50 (f(a/4)): .92</li>
<li>Negative Integer with the 42 thing: -6</li>
<li>Four digit number with 23 together: 6 ways</li>
<li>Period of sin + cos function: 2</li>
<li>something times x^2 plus something times y^2 was equivalent to some expression ended up yielding a = 2 and b equal to 4/sqrt(3)</li>
<li>Option E for which polynomial has three zeros</li>
<li>Limit of a function (x+2)/(x-2). I actually can’t remember the answer for this one. Some1 help me out on this.</li>
<li>f(x) = r^x. f(something) = something else. What is f(7). Can’t remember answer</li>
<li>First question: f(x) = x^-1.5. What is (f(something))</li>
<li>Arithmetic sequence: started at 1, kept on adding 7, answer was something like 92?</li>
<li>Polar function question: (3π/2, 2) was the answer (question was which is not a point on the graph)</li>
<li>logn/log2 about something being less than and greater than at same time or something. answer was 19</li>
<li>if 3costhetha + 3sinthetha = 1, then which is true? x^2 + y^2 = 9</li>
<li>Median w/h in the table was .248</li>
<li>Predicted height based on w/h = 192 </li>
<li>Standard deviation question was the single bar answer (I think it was A and the bar was at 80)</li>
<li>perfect cube question p^2r^5t^7 or something like that where p, r, and t are all distinct primes. dunno answer</li>
<li>The plane answer where m is a plane and C or something is a point 6 away from the plane and what is the portion of the plane that is not 12 away from it or something.</li>
<li>What are the coordinates of the point U of the function of f(x) = sin(x) + 1. It was π/2, 2 I think.</li>
<li>How many years will it take for population to go over 6million. Everyone says four or three but I could have sworn it was 5 (option E). Maybe i made a stupid mistake.</li>
<li>How many times does the graph of the equation cross the x-axis?
I don’t remember the equation but it goes something like this: xy^5-3y=2x^2+xy dunno the answer</li>
<li>f(x) = 1/(x^2+2) For which value of x is f(x) closest to 0.01. That one has two correct answers! Both 9 and 10 give pretty much the same answer.</li>
<li>There was one with three tables of x and y values asking which one(s) is(are) a function. They basically asked whether you can have multiple values of x for a single value of y, or the reverse. Someone got that the second and third ones are functions.</li>
<li>Equation of a circle shifted right 2 and up 2. All I remember is that there were two options that had a correct left side of the equation but one had a changed radius, which didn’t make sense. (Maybe option C?)</li>
<li>II and III for f(x) and f(x+2)</li>
<li>-abs(f(x)) was option D, where the whole thing was below the x axis and the graph looked messy.</li>
</ol>

<p>comme on guys half way!</p>

<ol>
<li>Equation of a circle shifted right 2 and up 2. All I remember is that there were two options that had a correct left side of the equation but one had a changed radius, which didn’t make sense. </li>
</ol>

<p>I think the answer was C.</p>

<ol>
<li>What are the coordinates of the point U of the function of f(x) = sin(x) + 1. It was π/2, 2 I think.</li>
</ol>

<p>i got 2 </p>

<ol>
<li>There was one with three tables of x and y values asking which one(s) is(are) a function. They basically asked whether you can have multiple values of x for a single value of y, or the reverse.</li>
</ol>

<p>i got the 2nd and 3rd are functions</p>

<p>go back on your calculator history to get questions/answers</p>