June SAT Math II Thread

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<p>If it was the 2nd thing, then (2x7) + 1 = 15 would have been the right answer (the one I chose). I was rushing through it by the end though and left 5 questions blank (45,46,47,48,50 I think)</p>

<p>^nooooooooo</p>

<p>@IntoOblivion - No, it was not saying 2k+1 will form a prime number for every integer k, it was saying a prime number can always be written in this form.</p>

<p>for the r one, was f(2) choice e? i vaguely remeber putting choice e</p>

<p>does no one remember the one with the (-2x) exponents? please help =[</p>

<p>and did you guys think this was an easy test or hard test? so what curve approx. would that translate into?</p>

<p>lol i chose 2x7+1 =15 is not a prime one</p>

<p>midlle hard i think…
i cant remember -2x one, but if u can remember the whole question i can work it out now…</p>

<p>The beginning was easy and I was pretty confident. The end that though really screwed me up. I probably spent too much time on one question and ran out of time. I left 7 blank and got 2 wrong</p>

<p>@btbam, now that I think about it more, I actually remember with like 10 seconds left just guessing f(2) because of the (x-2) since that would make it 0, but had no clue why that would work. Yay!</p>

<p>@UniversalPB, Oh, that sucks. The only question I know I missed then was because of reading :/</p>

<p>@stevenydc, You press the STAT button I think (maybe list, I don’t have my calculator with me) and press edit. The 1st column is L1 and the 2nd is L2. “Quadreg” is found if you go to that menu then click right one time instead of pressing edit.</p>

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<p>Oh, and the question that was 1.1 or whatever, they gave the answer in exact form and as a rounded number so that you could do the problem with or without a calculator, so they were both the same answer. (The question with the rectangle in the sine function)</p>

<p>Also, I was surprised to see a calculus question in there. They asked to find the absolute maximum of a quadratic function, but you can’t do that unless you find the derivative, unless it was another question about using your calculator like the QuadReg one.</p>

<p>And what did u guys put for the transformation of the functions that are symmetric about the y-axis. Was it f(x)=-f(x)</p>

<p>no sorry, i just remember something with (3x)^(-2x) + (4x)^(-2x) but it could have been subtraction in between or different bases, i really cant remember what it was besides that it looked complicated and im worried i typed it in wrong </p>

<p>so would 2 omit, 3x be an 800? (this is 3x now, what if i got another one wrong? and is a 780-790 really that horrible on this test? i think cc has distorted my perspective on sat scores lol</p>

<p>7 blank and who knows how many wrong…bad day</p>

<p>800math, i think the max one was finding the axis of symmetry and then plugging that x value in to get 599 (is this the question you’re talking about lol?)</p>

<p>IntoOblivion, i got f(-x)=f(x)</p>

<p>No, you can use your calc, or you can use -b/2a.</p>

<p>@intooblivion
i put f(x) = f(-x) for that one</p>

<p>Into obvlion, the answer was f(x) = f(-x), because it was reflected over the x axis, which is a even function. That test seemed harder than most math ii test I’ve taken… Weird.</p>

<p>1x: Finding Q given midpoint (1,3) and P(4, 5) -> (-2, 1)
3x: Don’t remember the question, but the answer was like 599.7 or something
3x: Indiana/Lake County -> 0.32
3x: Prime numbers/2k + 1 -> 2 is a prime number
3x: The weird function that had a horizontal asymptote and exponents like -2x -> one intersection
3x: Don’t remember the question -> f(x) = f(-x)
3x: The trig question with ST/SR -> tany or something… I don’t remember exactly what it was but you had to use similar triangles to solve it
3x: “Length of chord BC” -> 15.3
3x: Distance between cars -> 60
4x: Double of one root in the equation x^2 - 24x + c (c was 128) -> 16
4x: Area of rectangle created under the sine curve -> (square root of 2 * pi)/4 or ~1.1
4x: f(x) = g(x)(x-2) + r -> f(2)
49: 19th term</p>

<p>So when are test results going to be sent out/posted on the website?</p>

<p>Did you guys get k=-0.32 for the question with (x+sqrt(3))*(x-sqrt(2))?</p>

<p>Yeah, it ended up being sqrt(2)-sqrt(3) and that was the answer</p>

<p>^ I think so.</p>

<p>Didn’t the symmetry question ask about the y-axis? So it was f(-x)=f(x)?</p>