<p>I thought today's was a little easier than October, but not much.</p>
<p>I thought the test was almost too easy until 3/4 through it. Some of the 41-50 were tough (I omitted 5 questions total). Not a bad test... 800 please!!</p>
<p>Anyone remember that question that had similar triangles?</p>
<p>omitted 4 (the last three & I believe I skipped the one with the donut and the price regression thing) hopefully I didn't get more than two wrong. :c </p>
<p>do you guys know if you have -1/2 if they round your score up or down??</p>
<p>and also I thought for the box and whisker plot problem that there was something about range that worked.</p>
<p>I think i got 3 for that one.</p>
<p>Similar triangles was 3. The box plot one was I and III I think--almost positive. I wasn't positive about the donut regression one, i put A though.</p>
<p>^Same thing WantIvy, except for the box plot, which I skipped.</p>
<p>I thought the box plot one would be III only, although I considered I and III. The regression one was, in fact, A.</p>
<p>Ya same here with the Donut one. It was a y=mx+b form.
The numbers i think were d=-24.37p+273.
For every $1 increase in p, d decreases by 24.37.</p>
<p>What did you guys get for the transformation one? It gave you y=g(x)is some graph and then asked what is y=f(x) in terms of g(x)</p>
<p>I got lg(-x)l</p>
<p>I put 3 for the triangles too and I & III for the boxplot too!
I know I skipped one in the middle and I hope it was the donut regression one b/c I didn't get it. However, I remember going through that problem and croosing out everything but choice A.</p>
<p>@rjacbo, Yeah I got that as well.</p>
<p>Anyone remember the problem somewhere in the 50s. It said h(x)=sinx. g(x)=cosx
g(f(x))=h(x). What is f(x)? I put pi/2-x</p>
<p>I think cos(pi/2-x)=sinx?</p>
<p>Oooh yeah, that one. 1/5 I skipped, I think :\ I wasn't sure how to do it, but I was pressed for time at that point. Hitting the mid 30s-40s slowed me down a lot >.<</p>
<p>@ rjacob</p>
<p>Yes, cofunction identity</p>
<p>I got I and III for the boxplot/std tooo</p>
<p>III was the range, which was definitely right, no doubt.</p>
<p>Another question. It gave a graph of f(x). Graph had a lot of dips and curves.</p>
<p>It asked what is the y intercept of f(x+2). This is the same graph but shifted to the left by 2 units. I got (0,4) as y-intercept.</p>
<p>Yup, (0,4). I'll start spurting out random questions that I remember.</p>
<p>y>2x^2 -1. The answer was (1,2), since 2>1.</p>
<p>^No the third one should not have been rigt, because the plot B had two huge min and max, and since we do not know the number of the data set you can not assume that plot A has a higher standard deviation or range (i don't remember exactly). I put that is was only I, and I hope I was right. That test seemed really hard, probably bc i only studied for like two days.</p>
<p>What did you guys get for the one that asked x^2+2x+4=(x+2)^2+a(x+2)+b?</p>
<p>It asked for the value of ''a''?</p>
<p>^ Are you talking about standard deviation because that was II</p>
<p>it was </p>
<p>I. mean difference
II standard dev 50%
III. range</p>
<p>I am talking about range.</p>
<p>+++</p>
<p>The y > 2x^2 - 1 was queer.
There were two choices
(-1.5, 2) and (1,2)</p>
<p>Both of those are correct ): I left it blank.</p>
<p>the third one was saying how the range of the plot B > range of plot A</p>