AP Calculus AB & BC 2013-2014

<p>And yes – it does say open intervals. Another error. Although that is a really stupid one – I think x = -5 does actually work since f(5) exists, and so does f’(5). But the problem specifically excludes it (which is annoying) so the debate is moot I guess. </p>

<p>Hi, sorry to bother, but the link for the BC doc isn’t working for me— it just says it’s been deleted.</p>

<p>I’m gonna repost in a second with AB answers. Give me 5 minutes!</p>

<p>Can someone please post a doc with all the answers for BC? (:
The doc @SuperN0va‌ posted isn’t working for me</p>

<p>Do you think that if I forgot to include that general term (stupid me ARGH) but wrote it in part d trying to solve for the ratio, I would get the point for that? Also in part 6c…I forgot to multiply by 2 so I ended up with 1/2 ln (2x+1) for f and solved for C=0 and everything would I get points for taking that integral? Also…(ha I made a ton of stupid mistakes…it makes me so sad) for the related rates train…I did x^2 + y^2 = C so yeah I didn’t divide by 1000 because I’m stupid…would that warrant at least some of those points? I know no one can truly predict what the scoring guidelines would be like but I would like to hear an opinion. btw this is Cal BC. it’s like I knew how to do it but I did it wrong. -_-</p>

<p><a href=“Calculus AB & BC Solutions 2014 | PDF | Teaching Mathematics | Mathematical Analysis”>Calculus AB & BC Solutions 2014 | PDF | Teaching Mathematics | Mathematical Analysis;

<p>All AB and BC solutions. </p>

<p>@SuperN0va Thank you!!</p>

<p>You’ll only lose a point or so for most of those mistakes. If you had the correct process, you’ll get the majority of points. Perfection is not required for the 5 – in fact I think you only need like 66% to get the 5. </p>

<p>Yeah…I realize that part…I’m just bummed because I scored so high on the practice ones and just screwed up every little thing on the real one… V_V oh…one more question. If I had said decreasing at a rate of -0.164 would that usually be all right?</p>

<p>It’s semantically questionable whether that’s OK. I can’t imagine they’d really take off for that (or even notice). </p>

<p>@kli586‌ </p>

<p>I am absolutely 100% you will get a point off for that. </p>

<p>Remember one thing. </p>

<p>Decreasing at a rate of -0.164 eventually means</p>

<p>INCREASING at a rate of 0.164,</p>

<p>which obviously is incorrect.</p>

<p>Not necessarily – it could be interpreted as you saying that the rate is -0.164, and the word decreasing is just an interpretation of the negative sign. It’s open to interpretation – not necessarily a double negative = positive. </p>

<p>Tell me,</p>

<p>To you, what does</p>

<p>decreasing at a rate of 20 m/s mean? let this be the velocity, which means it is the derivative of position.</p>

<p>So this would mean</p>

<p>ds/dt = -20m/s </p>

<p>It would NOT mean</p>

<p>ds/dt = 20m/s right? You need to be very careful with signs.</p>

<p>Its the same for negatives.</p>

<p>For part D of the grass clippings question, i remember using the linearization method and for some reason i recall writing down 35.069 instead of 35.054, do you think they’ll still give me full credit? Also, do they give full credit if i left the average acceleration as -220/6 instead of -110/3? Otherwise i got an 100 on the frqs :d</p>

<p>If you got a 100 aside from that – I wouldn’t worry about those 2 points. </p>

<p>BUT – you will 100% get credit for the -220/6 and 95% get credit for 35.069. </p>

<p>Also, does anyone have a more organized (and accurate) list of multiple choice answers/solutions?</p>

<p>Is saying decreasing at a rate of .164 right as well? </p>

<p>Decimation, you need to state A’(15)= -.164 because it asks you to solve for A’(15), but when explaining the significance of this, saying that it is decreasing at a rate of .164 is correct</p>

<p>^</p>

<p>well I screwed up the train problem…</p>

<p>btw what did you guys get for the last one (Taylor series)?
was it -ln|-3x-2| or something like that? </p>

<p>It was ln|2x-1|</p>