<p>But are the numbers inside the parentheses right?</p>
<p>I believe the question was f(-5) where f(x) = -3(x^2 + 3x + 2)/(15x + 15) which gives 36 over 60 which is 3/5</p>
<p>Any idea what a -1 will be?</p>
<p>@LiamNeeson 36 most years.</p>
<p>Magnet one can be model as f= 1/d^2 where f= force d= distance and I used one where k would be since it doesn’t matter. I plugged in d=12 to find force to be 1/144. Half that is 1/72, so I plugged that in for f to find the new distance. 2 radical 6</p>
<p>^ 6√2??
10char</p>
<p>@Liam ive taken the ACT several times and on math i’ve always missed only 1 question, bringing me to a 35 and this has been recent tests (last year)</p>
<p>@Act34ormore My bad lol thats correct</p>
<p>Does anyone remember the answer letters for the magnet and rocket questions?</p>
<p>^ D I think…</p>
<p>The rocket answer is 1 because at 32 ft the ticket passes at 1 second and 2 seconds. 1 second is the ascent, which they were asking for.</p>
<p>Dose any one remember the negative exponent question?</p>
<p>@themost I know which one you mean… I was unsure but I think it was just decreasing since it was a decaying function</p>
<p>No it can increase and decrease but it was a mixture of 0 less than or equal to x less than one or something like that because once you start going negative it won’t be decreasing anymore…if that’s the one you’re talking about</p>
<p>anyone remember what the answer choice was for the weird a+bi question?</p>
<p>a-bi, lol. Conjugate.</p>
<p>a,b,c,d,e?</p>
<p>Oh. Why would I remember that?</p>
<p>@Niquii77 the question was which answer describes the function f(x)=a^-x where a is greater than 0. This is a decay function and can only decrease. Limit as x approaches (-)infinity is infinity and limit the other way is that y approaches zero. I am looking at a graph of it right now with 1 subbed for a and it only decreases.</p>
<p>@set1012
a-bi is the conjugate of a+bi. So if the question had 4+2i, the answer (in this case) would be 4-2i.</p>
<p>@IdontGIVEaSHIZ
Are you sure you only had 1 wrong on all of those tests, and out of curiosity, what dates are you talking about?</p>