Official Act Math Thread June 2013

<p>any one remember the options for the last question?</p>

<p>You can’t get zero two different numbers the vaiables were x and y they were not both zero</p>

<p>it asked for (x,y) not two variables. it was an ordered pair which could mean they could be any number. </p>

<p>However, I may be wrong. If they stated that k was a positive integer (which I don’t recall), then I’m wrong because 0 is not a positive integer. But, if they did not state that, and 0 was a possible value of k, then I’m right.</p>

<p>K had to be a positive integer. The absolute value of any integer always ends up being positive. As such, the l x l and l y l had to be positive. Since K was being multiplied by negative, that entire value had to be negative, which an absolute value can never be equal to. There would therefore be no solutions, or 0.</p>

<p>K did NOT have to be positive. I remember being stuck on the question and reading it again and it saying something like ‘any rational integer’. So I knew 0 was a rational answer and plugged it in, thus 1.</p>

<p>what is 3log(base3)20= to? I know this isn’t the best place to post this, but I just want to prove to my friend that he’s wrong. Thanks in advance.</p>

<p>It was definitely not zero for absolute value question, because K was defined a positive integer</p>

<p>no solutions</p>

<p>Did the absolute value question say any rational integer? If so, 1 would be the answer. I didn’t, however, think that 1 was one of the answers.</p>

<p>No the context says for postive integer K. 1 is not an answer.</p>

<p>I also somewhat remember k being defined as a positive integer…</p>

<p>OH TRUE nevermind, i got mixed up with a different question. It is 0 possible answers lol (btw, did it say ‘0’ or ‘no solution’?)</p>

<p>yes, read the entire thread</p>

<p>Okay. If it was positive integer K, 0 is the answer, which I put.</p>