<p>why was the upside down parabola only -3. I thought it could be 0 as well.</p>
<p>@ new fish - ok so i’m really bad at remembering the question after the test…i’m not even sure which one you are talking about, but i definitely got 5/12 as one of my answers.</p>
<p>you can’t add two negatives and get zero</p>
<p>and pie wasn’t experimental i dont think, i think everyone had it</p>
<p>ah alright rupps :/</p>
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<p>I would think it could be zero, too. But there was no option. So I just stuck with what I knew and picked “I Only.” Haha.</p>
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<p>New Fish - I actually remember writing down .417. For what? I don’t know. But I remember rounding and putting that down, haha.</p>
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<p>Due to the shape of the parabola and the y-intercept, both a and b had to be negative. They can’t add together to make 0. :</p>
<p>What was the pie chart one? Can someone elaborate? Was it the one with the %p?</p>
<p>Because B was negative, (y intercept was negative)
a had to be negative because it was pointing down.</p>
<p>negative plus negative = negative</p>
<p>The one with the pie chart is the real one. </p>
<p>^How do you know? Was that the second one??? I forgot.</p>
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<p>Any number from 41-49.</p>
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<p>I had CR-experimental. And I had the pie chart on my grid in. So that means it was the “real one.” (Since I didn’t have the other, etc.)</p>
<p>It was 40<x<50</p>
<p>If I remmeber correctly, the eq was ax2+b and it didn’t specify how “fat” the thing was. b has to be neg for sure but a could have been positive right? So I put I and III was right…</p>
<p>I guessed and checked for values of p.</p>
<p>I ended up with p = 18 and my x was like 46.</p>
<p>How did you all get 40<x<50 for the question with x and p? Wasn’t x between 2p and 3p?</p>
<p>Legend:
It’s not the experimental because I had that problem, but had writing experimental.</p>
<p>so now i’ve confirmed that i got two wrong at least 
, the function one and the 5/12 one</p>
<p>and 40/3 isn’t definite i guess</p>
<p>what’s 2 wrong in math like score-wise?</p>
<p>What was that one? lol</p>
<p>Well…two wrong so far…two stupid mistakes.</p>
<p>Pie chart - did not read that the answer was a percent. just assumed it was in degrees.
Digits question - thought it said ones digit less than tens digit 
so i ended up with 45</p>
<p>Good thing colleges superscore.</p>
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<p>Think of n(n-3)/2 just like any other equation. Out of your choices only 1 of them is a point that exists in that equation. The easiest thing to do, is enter the equation in your calculator then go to the table and look till you see 65 (the answer)</p>
<p>Wait, was it asking for degrees or percent of the whole?</p>
<p>@ JanSAT09 and Monoclide - I’m not so sure. I got x=30 and it works.</p>