SAT: Subject Test Mathematics Level 2 Post-Test Discussion Thread

<p>@intooblivion I got that too nice</p>

<p>z=0 contains neither point…the points had z values of 5 and -5</p>

<p>Aw shoot, the one about the towns, did you just have to graph the different equations? For some reason my mind blanked on that one.</p>

<p>wait so there could be 2, 3, 4 zeros?</p>

<p>not 2,4?</p>

<p>wait i mightve read the question wrong… z=0 is not a point isnt it a line…same with y=0 and x=0</p>

<p>it was 2,3, or 4 zeros I believe</p>

<p>wait hold on, for the ax^3+bx^2 was choice I-has two distinct reals because it could have 3 right?</p>

<p>and i got 2 3 and 4…i literally guessed that one out of my ass cusof time haha so lucky</p>

<p>I said 2, 3, or 4 zeroes as well.</p>

<p>z= 0 is the xy plane… and the answer (arghhh!!! -1)</p>

<p>@violinplayer
It was 2,3,4</p>

<p>function 1 could have had 0 and 1
and f2 could have had 0 and 10</p>

<p>Neither could overlap, 1 could overlap, or both could overlap</p>

<p>yes it is a line, and it will always be equidistant from the 2 points because they had the same x and y coordinates so the x and y coordinates do not matter for any equidistant point, as long as z=0 the point will be equidistant from both points</p>

<p>@selfindulgent-what question are you guys talking about?</p>

<p>@IntoOblivion</p>

<p>ax^3 * ax^2</p>

<p>number of possible 0s</p>

<p>@LovingNewYork
That is a different one. I hope it was 2 though</p>

<p>They are talking about the two functions, both of which have two distinct real zeroes. Have many zeroes can the product of the functions be one.</p>

<p>I feel really dumb, I didn’t get the last question I don’t think. ._.
What does it mean when they talk about period or whatever?</p>

<p>I thought that question asked which of the following was true:
I.-has two distinct zeros
II.-when x>0,f(x)>0
III.-domain of all reals</p>

<p>or am i thinking of something else?</p>

<p>wait that looks familiar</p>

<p>but i dont think it was x^3 x^2</p>

<p>oh crap im ■■■■■■■■ it is z=0</p>

<p>IntoOblivion, that’s a different question. But for that one, I think I put I and III were true… not 100% positive though, I forget what the functions looked like.</p>

<p>I put I and III for that, IntoOblivion</p>