<p>silas101, only one question, did you get linear or curve?</p>
<p>for which question</p>
<p>slope field......last question</p>
<p>anyone: there was a question about e^(ax) + f(x) and you had to find the first derivative and second derivative. Does the second derivative work out to be 0?</p>
<p>The thing is, I redid the slope fields question, this time NOT simplifying e^lnx to x, and I got the same answer. Eh.</p>
<p>I thought the multiple choice was really easy. I answered every question, and I had enough time to go back and recheck my answers three times. The free response was okay. The only one I had problems with was the slope fields one. I can still get a 5, even if I miss part (b) of that problem, given that I did relatively well on the multiple choice and the rest of the FR, right?</p>
<p>I got a-4 for the first derivative, and a^2 + 3 for the second derivative.</p>
<p>First deriv = ae^(ax) + f'(x)</p>
<p>sec = (a^2)e^(ax) + f''(x)</p>
<p>I got a linear equation for that one question and said the domain was all real except 0? That was defintely the hardest question on the whole test.</p>
<p>I also was stumped on the slope field because every practice exam with that question gave an answer similar to y=e^x+c. I also got a linear answer and I know it's wrong because of the way the slope fields are drawn. Maybe we all cross multiplied wrong and should have gotten
1/(y+1)dy= xdx</p>
<p>the question about e^ax + f(x) which FRQ was it? was it six?</p>
<p>it should turn out to be ln|y+1|=ln|x|+c, with f(1)=-1, so c=ln(0) which DNE</p>
<p>"the question about e^ax + f(x) which FRQ was it? was it six?"</p>
<p>yea it was the 6th one on no calculator section</p>
<p>I thought it was ok. I actually thought the FR was easier than some on here but I still screwed up on one of them. The MC wasnt bad, curve might be tough this year.</p>
<p>what was the second part of question six? It seems out of all the questions I can't remember 6 and it's driving me insane!</p>
<p>mc no calc was kinda harder than i expected, prolay 3-5 wrong
calc mc was a breeze 1 wrong
free response, prolay 6 or 7 points off</p>
<p>slope field</p>
<p>for those of you who are wondering about the slope field, I emailed the question to my friend-he's getting a scholarshipt to harvard grad in math studies(only studnet to do so) and he said my answer for the differential equation was correct. I will disclose it after 48 hours have passed.
I'm just happy I got it lol</p>
<p>Hold on, wasnt it Rocket A?</p>
<p>All I did was integrate the acceleration and plug in t=80 for B. That gave a value of 27. Rocket A was 49 at t=80.</p>
<p>can you just answer if it's a linear or curve?</p>
<p>on page 3, he stated that it was linear.</p>