<p>Using calculator notation:</p>
<p>fnInt(f(x),x,a,b)=3
fnInt(f(x),x,b,c)=7
fnInt(g(x),x,a,c)=12</p>
<p>Evaluate fnInt(2*f(x)-g(x),x,a,c)</p>
<p>That would make the answer 8, yes?</p>
<p>@JordanSaidWhat that’s what i put.
@Nidget why wold it be -20?</p>
<p>We can rewrite the integrals using the Fundamental Theorem of Calculus:</p>
<p>F(b)-F(a)=3
F(b)-F(c)=7</p>
<p>Since the integral we are asked to evaluate is from a to c, we want to get the two integrals in terms of F(c)-F(a)
F(b)=F(a)+3
F(a)-F(c)+3=7 //Substitution
F(a)-F(c)=4
F(c)-F(a)=-4
fnInt(f(x),x,a,c)=-4
Plug and chug, you get 2*(-4)-12=-20</p>
<p>I got 8, but I’m pretty sure it’s 20</p>
<p>Yup. I got 20</p>
<p>You guys who are freaking out about missing one or two questions, you need to chill out. You can miss like 20 MC and get like 7s on all the FRQs and still get a 5.</p>
<p>i got -20 too
for the last non-calculator mc one with the slope field, what’d you guys get?</p>
<p>Something involving (y-1) is all I remember</p>
<p>I know that the slope fields one was not xy-x or xy+x, those result in ln functions. It was the one with the fnc squared…, I believe (y-1)</p>
<p>The answer to that integral one is 8 not -20.</p>
<p>the integral from b to c of f(x) gives F(c)-F(b)=7
Not F(b)-F(c)=7</p>
<p>Omg larvalicious no you’re wrong, read posts above for explanation…</p>
<p>What do you think the cutoff for a 5 would be?</p>
<p>Um, no, the answer’s 8. The explanations above are wrong :/</p>
<p>For the integral question, wasn’t the second function they gave have the bounds c to b not b to c?</p>
<p>I believe it was from b to c not c to b</p>
<p>There seems to be a discrepancy about the points needed for a 5. My teacher, he’s read for three years, says a 65 is the break, whereas a 68 is on AP Pass and higher projections are on this thread. </p>
<p>If I missed 6-8 MC and got something like 8-9-9-9-4-4, is that a 5?</p>
<p>It was from c to b. integral of f(x) from a to c is therefore -4.----> 2 times integral of f(x) - integral of g(x) (which was 12) = -20. I am 100% sure that this solution is correct. I literally looked at that problem 20 times to make sure it was from c to b.</p>
<p>Ugh everyone term664 is correct! I swear upon it.</p>
<p>Yes, even by your worse estimates that’s an 87/120, (1.2 times number of correct multiple choice plus raw total FRQ score), but i think it’ll probably be at least a 70 since the AP pass curve was calculated when you still lost points for guessing</p>