AP Calculus AB 2013 Thread

<p>Thought that was a fairly easy one compared to previous years, think I did something like 7-8-9-7-5ish(messed up on the integration in part A)-2(at best, completely blanked on what to do, I might have gotten A, but that’s 2-3 points at best), and probably around 1/2 of the multiple choice right. Thinking that’s good for probably a 4 which I’m happy with, Calc was my worst AP by far, teacher was fairly horrible, and it just doesn’t come the way to me that stats did, which made so much more sense…</p>

<p>Lol not to be *****y but how did you do so well on the frq and do so much worse on mc?</p>

<p>I’m predicting that I got a five on this exam, it wasn’t too hard. I’d say I got 80-90% of the MC right and maybe 50-60% of the FRQ right.</p>

<p>apa, dame?</p>

<p>Lol sorry same</p>

<p>@elnamo</p>

<p>My teacher said whether or not they take off points for leaving the dx out depends on the grader. Some graders may light it slide while others may take off a point.</p>

<p>Ok, I’m legitimately confused now. There were a bunch of other people in my class who had the same FRQ as me and others who had the FRQ that were released. Did anyone else here have the test that was labeled Form E?</p>

<p>@TheBombingRange: what’s max 2/6? Isn’t it out of 9?</p>

<p><a href=“Supporting Students from Day One to Exam Day – AP Central | College Board”>Supporting Students from Day One to Exam Day – AP Central | College Board; it refers to 2/5 points on that section of the question aka max score of 6/9 for that question. See page 6.</p>

<p>I think by constant of integration it means the “+C”…</p>

<p>I made a stupid mistake too. I thought that f(3) was the integral from 0 to 3 of f’(x), so I plugged in the initial condition from part (a). I didn’t see that they gave me f(3), so I kinda just BSed my way through that one. I reviewed my work with about 4 minutes remaining, and caught the error, but I still plugged it into the integral. You might miss 1 point, just like I will (probably 2), but you showed that you understood the problem.</p>

<p>I don’t remember any of these questions. The memories of the Calc exam have already exited my head. I just know that my teacher will probably cry if I don’t make a five, so…fingers crossed.</p>

<p>^wow your teacher must really love you or something</p>

<p>If i got 1a,1b,1c,2b,3a,3b,4a,4d,6a correct (plus a point here and there for sep of variables, integration, etc. About how many FRQ points is that? I probably got 20-25 right on multiple choice. Im hoping for a 3. Thanks</p>

<p>Nidget I have a problem with some of your answers, though I can’t be sure. The interpretation of #3c: Why is 1/6 fnInt(C(t),t,0,6) the total amount of coffee from t=0 to t=6 minutes. Doesn’t the 1/6 make it the average value of C(t), therefore the average amount of coffee from t=0 to t=6 minutes?</p>

<p>I even made an account just to address this.</p>

<p>Also another question, if I missed #5A (the area of R) by a careless miscalculation, would I still get the point for #5C if I used the right formula
i.e. fn(Int) (WrongValue^2, t, 0, 2)?</p>

<p>According to the FRQ from 2012 exam, credit was awarded for having “the constant of integration” and “using the initial condition.” Would any points be awarded if I had the constant of integration and used the initial condition but integrated 1/e^ydy incorrectly, so I got the wrong answer? Thanks!</p>

<p>@LAC2017 I asked my teacher this question, and he told me yes, you get points, just not for integrating. (You’ll get them for the things you knew to do, like separate variables, use IC, etc.)</p>

<p>Awesome! Thanks so much!</p>

<p>@shaun42 [AP</a> Pass - AP Calculusab Calculator](<a href=“http://appass.com/calculators/calculusab]AP”>AP Calculus AB Test Score Calculator - AP Pass)</p>

<p>I know, but im trying to figure out how many FRQ points I will get.</p>