<p>I thought it asked if it intersected the x-axis...</p>
<p>It did say "intersects".
It follows k<0.</p>
<p>That one with the approaches problem I just put it doesn't approach anything. Is that right?</p>
<p>Also the max problem I took the deriv of the equation and set it equal to 0 and got like 5 (i don't remember) was that a valid way to do that problem?</p>
<p>So then is the answer k < or = to 0????</p>
<p>Did we say that if it's tangent, it intersects??</p>
<p>If I omitted 8 and got everything else right can I get an 800?</p>
<p>i put k is less than or equal to 0. a lot of people did. i'm 99% sure thats the answer.</p>
<p>
Agree. I took the SAT Math 1 and 2 in 2001, 2004 and 2005 (can't help a little bragging :o). Today's Math 2 is much easier; Math 1 is about the same.</p>
<p>I put k<0 because of what I previously said, but I am not sure, now....</p>
<p>"Intersects": definitions vary (<em>math is a precise science</em> lol).
I think, the prevailing one is that a graph should be on the opposite sides of the x-axis in the proximity of the intersection point. That rules out the tangent case.</p>
<p>Yeah, I'm confused too. Does a tangent line count as intersecting? Technically, at k = 0, it was touching the x-axis. The question asked when does it intersect. Does intersecting mean going over the x-axis with at least going to -1 ?</p>
<p>do you guys remember any other questions?</p>
<p>if you look up intersection theory in a math book it explicitly states that given a curve and a tangent line, the point where they meet is an intersection...</p>
<p>How many can you miss (omitting zero) and still get an 800? 790? 780?</p>
<p>Also--are y'all sure it was 0 triangles can be made? (I guessed 3, lol)</p>
<p>6 mistakes gives you 800
7 mistakes gives you 780, provided you didnt skip any</p>
<p>That one with the approaches problem I just put it doesn't approach anything. Is that right?</p>
<p>Also the max problem I took the deriv of the equation and set it equal to 0 and got like 5 (i don't remember) was that a valid way to do that problem?</p>
<p>anybody knows the answer to the log question ??
it looks like this logn 5 ... something np .. n^2
i put 14 duno if its right</p>
<p>I skipped that problem. I tried taking the ln of both sides to cancel the ln on the left, then solve for x, then take the log (2 (that val)) but it didn't work. Someone explain this problem, please.</p>
<p>Also the lognpR problem or w/e</p>
<p>i got 11? 10 char</p>
<p>The answer to the log problem is 11, use properties of logs. What was the
problem with x approaching 1.5?</p>
<p>for the x approaching 1.5, i said it doesn't approach anything. cause if you take the limit, its DNE, since (x+2) or w/e was in the denom.</p>