<p>Ivy leagues dont accept scores under 5 for the ab exam I heard. Does that mean I"ll have to take calculus again if I get in to harvard or mit?</p>
<p>Yes, unless your major doesn’t require it.</p>
<p>Wow seriously… that’s ridiculous. A couple of the free response questions on the calc ab exam this year were very foreign and the way the problems were phrased were very awkward. I looked at 2009 2008 2007 free response questions for ap calc ab, and they were very easy to me. They were not good for preparation at all for this year’s free response questions… some of them were just very hard. If I get a 5 on the BC exam and I get into Harvard, then what happens?? That’s only if I get below a 5 on the ab exam.</p>
<p>Then the AB score “disappears” when they give you credit. If you get a 5 on BC and a 1 on AB, the BC 5 is used for credit.</p>
<p><em>Whew</em> that’s such a big relief because I’m predicting a 4 on the ab exam. Hopefully I get a 5 though. Thanks</p>
<p>The curves for Calculus are actually pretty nice. You may be surprised when you get your scores. I’m a bit curious, though–which FRQs are you talking about?</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;
<p>All of them?</p>
<p>just the first 3 I thought were extremely hard, or rather I couldn’t understand it’s verbose descriptions.</p>
<h1>1 initially confused me when I took the test. #2 also confused me as well (though not as much). Since I took the BC exam, my #3 was different, though I have to say that AB3 sounds really complicated. I honestly don’t know how I’d go about solving #3. 3a is probably integration on [0,3] and 3c is probably at t=2, but I’m not sure about 3b or 3d.</h1>
<p>are you a rising junior? And what do you think of no. 6? How do you think you did on the bc exam?</p>
<p>Yeah, I’m a rising junior (I think rising junior means I’m going to be a junior next year). Number 6 looks really easy, especially part a. Part c doesn’t look too bad, either; just separate variables and integrate. Part b looks kind of weird–the first part of b seems a bit tricky and dangerous without a calculator. The second question in b seems really weird at first, but when you plug in 1 and 1.1 into the double derivative, you see that f(x) is concave up, so the tangent line approximation is less than f(1.1).</p>
<p>I had an amazing teacher for BC. I’m confident I got a 5.</p>
<p>Yeah so we’re both in the same grade. For some reason, most of the people I know had trouble with no. 6… I really wish I could have just taken bc sophomore year 
(school doesn’t offer bc so I’m forced to take ab). then I would have avoided a couple of the free response questions on the ab exam…</p>
<p>No. 6 just looks really, really scary. Once you think about it, it’s not that bad. On the other hand, no. 3 looks simple, but it really isn’t. I’m glad I avoided it.</p>
<p>I thought AB FRQ was easy and not much different from the FRQ from past tests. Worded differently? Sure, but the types of questions were essentially the same.</p>
<p>3a) Correct, int. from t=0 ->3 (area under curve)</p>
<p>3b) Increasing. </p>
<p>3c) Wrong, line longest @ t=3. </p>
<p>@ t=3, there are:
(area under curve from t=0->3) - 2400 = # ppl waiting in line</p>
<p>3d) int from t=0->b of r(t) = 800b,
Solve for b</p>
<p>So this is what all the fuss is about that I’m hearing from all my friends who took the AB exam.</p>
<p>Oh, so 3c is asking when r(t)=800. That makes sense now.</p>
<p>^ The question is why. Why must r(t)=800?</p>
<p>I’ll be lucky to even get a 3, lol.</p>
<p>Because the rate of passengers leaving is 800. So, you’re finding the time t for which integration of r(t)-800 on [0,t] is the most. Since r(t) decreases after reaching 800, the value of the integration would be maximized at t where r(t)=800.</p>