<p>So did/can anyone confirm the polar coordinate problem? I’m pretty sure it was D or E, ones with 2 for r. I think it was (2,pi/2) for D and (2,3pi/2) for E, which is what i put.</p>
<p>Polar Co-ord was (2,3pi/2)</p>
<h2>I’m not sure which letter it was.</h2>
<p>Btw, for that one do you just do the avg. distance between the points x,y,z? </p>
<p>^ I just did midpoint for all three?</p>
<p>@ Krazy</p>
<p>I got E for that question. It was the choice with 3pi/2 in it.</p>
<p>For the tables with “which is y a function of x”, the answer is II and II for sure. I was a relation because there were 2 y values for the x…I think…</p>
<p>wait what was number 3, betafist?</p>
<p>II and III I meant</p>
<p>So did/can anyone confirm the polar coordinate problem? I’m pretty sure it was D or E, ones with 2 for r. I think it was (2,pi/2) for D and (2,3pi/2) for E, which is what i put.</p>
<p>^^^^^^^^^^^^^
I can congirm that (2,3pi/2) was E</p>
<p>For the tables with “which is y a function of x”, the answer is II and II for sure. I was a relation because there were 2 y values for the x…I think…</p>
<p>^
I thought III was for sure wrong. :/</p>
<p>Anyone confirm this answer? xD</p>
<p>I believe III showed that y = 1/2</p>
<p>@zhaoqirock: i confirm with the radius being 25 because when you shift the circle the whole circle is being moved. were not stretching the cirlce in any way so the radius cannot change. </p>
<p>so (x-8)^2+ (y-3)^2=25</p>
<p>For the tables with “which is y a function of x”, the answer is II and II for sure. I was a relation because there were 2 y values for the x…I think…</p>
<p>^
I thought III was for sure wrong. :/</p>
<p>Anyone confirm this answer? xD </p>
<p>III WAS a function, because it was a straight line at y=1/2</p>
<p>I got II and III as well</p>
<p>for the question with sinx=.56 find sin(4x)? </p>
<p>did anyone get .7ish as their answer? because i graphed both and found out where the intersect.</p>
<p>Oh sweet, it WAS II and III? I think that puts me back at a 41.25 which is 780 not horrible</p>
<p>find sin^-1(.56) = x</p>
<p>multiply by 4 </p>
<p>then take the sin of that</p>
<p>@ Packer, hah, nice…hopefully we’re right…I’m not positive on I having 2 y values…but I’m pretty sure.</p>
<p>ya do sin^-1(.56) = 34.0558 degrees then do sin(4*34.0558) = 0.6918 and the choice was like 0.692</p>
<p>There was also a question involving sin(2x)=a…it was 2sinxcosx=a–>2sinx=a/cosx=asecx. Anyone confirm?</p>
<p>so .7 it is then cause my calc gives me like .689 or something. i totally guessed on that one from the graph. </p>
<p>what about the one with -??
did you guys get -x as the answer? cause supposedly there was a restriction on x<0 which would make the answer -(-x)=x</p>
<p>@ Ivysaur
I can confirm that!!</p>
<p>you’re like my older brother</p>
<p>so .7 it is then cause my calc gives me like .689 or something. i totally guessed on that one from the graph.</p>
<p>what about the one with -??
did you guys get -x as the answer? cause supposedly there was a restriction on x<0 which would make the answer -(-x)=x </p>
<p>^
Wasn’t it absolute value?
It should be -x no matter what…</p>
<p>Edit: Oh darn I read the problem wrong. D:</p>