June 2010: Math II

Archive SAT Subject Test Preparation
581

<p>Any predictions for the curve? Was this an easy or hard math II test?</p>

582

<p>Scores come out the 24th.</p>

583

<p>how is tht one with (2,2) and (-2,-2) symmetric at y=-x.</p>

<p>its slope is 1…</p>

584

<p>y=-x is a negative line crossing through the origin. It is almost exactly like the origin option.</p>

585

<p>Nah.i think its symmetric about the origin isnt it?? It Cannot be y=x anyway coz one of the given points pass thru it and the other doesnt.</p>

586

<p>o lord facepalm. haha i suck at life</p>

587

<p>How dyu do the Ln x=e^x question??
Could somebody plz explain??</p>

588

<p>@omgpie911
y=-x has a slope of negative 1, it divides the plane in half

<a href=“http://imgur.com/AYER2.jpg[/img]”>http://imgur.com/AYER2.jpg

</a></p>

589

<p>law of sines anyone?</p>

590

<p>@ perfectpixie</p>

<p>Exactly what I thought. Until chance led me to re-read III and I saw it said y=-x. negative x.
Which the points ARE symmetric about. :(</p>

<p>@miamirulz
Lol, if you thought it was minimum score, you’d still be right…
Cuz since you apparently knew there was a minimum of 5 judges, and each can give a 1, the minimum score would be 5.</p>

591

<p>And another one for the consolidation books:
if y=mx+b passes through only two quadrants, what must be true?
And I got something like m=0. Or whatever led to the equation being a horizontal line.</p>

592

<p>^I don’t remember that one :(</p>

593

<p>Actually rustGust, the minimum score would be three if there were five judges, atleast that is what i put. Yeah I don’t remember which one you are talking about.</p>

594

<p>@RustGust that was definitely not a question i don’t know where you got that one from.</p>

595

<p>Any estimates for the curve and the relative difficulty of this test?</p>

596

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597

<p>i’m sorry for being so annoying guys, but i can’t remember two of the answers I put and it’s bugging me…</p>

<p>For the ratio one (1:2), was the answer C? i know it was (8,12), but was that “C?”</p>

<p>And for the parametric one i was almost positive i got it right, but was -1/3 “D?”</p>

598

<p>Hey,
Can someone PLEASE explain these to me?</p>

<p>Value of x^x as x approaches 0: 1
I got like .7 or .8 on my graphing calculator…</p>

<p>ln x = e^-x: 0.27
How the heck do you do that?</p>

<p>Unit circle/chord: 2sin(theta)
I was pretty sure it was sin2theta</p>

<p>n(n+1)(n+2): divisible by 2 and 3, but not 4
Which one was this?</p>

<p>And I omitted 4 questions, definitely missed 1, and probably missed like 2 more. What score would that be?</p>

599

<p>@connie,
it’s 1. Plug in 0.</p>

<p>skipped</p>

<p>skipped</p>

<p>plug in 101</p>

600

<p>@ Rustgust- yea i just figured that out. :frowning:
How dyu do the ln x=e^(-x) question</p>