June 2009 - Mathematics Level 2

<p>They were asking for edges? Darn. I thought they were asking for sides.</p>

<p>-2-2i was the answer</p>

<p>can someone plz tell me what 4 wrong and 2 left blank is?</p>

<p>i got -2-2i but ppl got dif answers than me OR not ^^ cool guy agrees with me thats a good sign :)</p>

<p>im 100% sure i did all the math</p>

<p>4 wrong and 2 blank is either a 790 or 800</p>

<p>temperature was 26.9
period was pi/2
paint was 798
how to determine a solution: look for same x value
complex numbers: -1-2i</p>

<p>can we confirm any more answers???
row triangle: 201
exp regression: 24
x^2-y^2=72: -12
f(g(x))=x: 1/x
reflection problem: -f(-x)
f(x+3): e^x
pentagon prism: 15 edges
movie q: n= x/(.6d)
boxplot: 50%</p>

<p>how to determine a solution same x value but also f(x)-g(x)=0 so the answer was I and III</p>

<p>@ bell curve i though ti was I and III (look for x and zeroes–sumthing lek that)</p>

<p>what did you guys get for the question wehre they gave you a graph and then flipped it over the x and y axis?</p>

<p>wasn’t it -f(-x)? or was there some weird trick?</p>

<p>the complex numbers one was definitely:
-1-2i
III is just a messed up way of saying II.</p>

<p>I didn’t have enough time. What’s 7 blank and like 3 wrong?</p>

<p>lol looks like no one knows.</p>

<h1>50: -1-2i</h1>

<p>7 blank and 3 wrong is a raw score of 39. AKA about a 760.</p>

<p>whats the consensus for how to “determine a solution:”
“I only” or “I and III only”</p>

<p>CONFIRMED, period of |tan2x| = pi/2 – [|tan2x|</a> - Wolfram|Alpha](<a href=“|tan2x|]|tan2x| - Wolfram|Alpha”>|tan2x| - Wolfram|Alpha)</p>

<p>row triangle: 201
exp regression: 24
x^2-y^2=72: -12
f(g(x))=x: 1/x
reflection problem: -f(-x)
f(x+3): e^x
pentagon prism: 15 edges
movie q: n= x/(.6d)
boxplot: 50%
period: pi/2</p>

<p>actually isnt III saying the same thing as I because finding the zeros of the graph is also finding the x value?</p>

<p>can we confirm any more answers???
row triangle: 201
exp regression: 24
x^2-y^2=72: -12
f(g(x))=x: 1/x
reflection problem: -f(-x)
f(x+3): e^x
pentagon prism: 15 edges
movie q: n= x/(.6d)
boxplot: 50%
counterexample: 15
complex numbers: -1-2i</p>

<p>oh yeah, I think it is I and III, doesnt matter to me though, only 4 wrong.</p>

<p>whats the “counterexample problem”?</p>

<p>i know u guys will disagree with me
but i disagree with the answer on the confirmed list for the complex number prob (-1-2i)
i wanna do the problem again lol does any remember the 10th term, which is given?</p>