<p>How important is it to the know the formula for general conic sections? The Ax^2 + By^2 + ... formula and the corresponding if B^2-4ac < 0, etc?</p>
<p>Correct me if I am wrong, but I think it is absolutely necessary to know:
Equation of ellipses, parabolas, circles, hyperbolas and maybe their corresponding parametric representations.</p>
<p>But how important is it to know latus rectum (hee hee), vertex of a parabola, focus and directrix, etc? I just cannot see the ETS asking such specific questions like that on the Math II, and if they do, it will probably be much more obvious than having to remember a formula.</p>
<p>What do you guys think are absolutely essential to know in terms of Geometry?</p>
<p>To be honest, I went into the testing room with only know knowledge to distinguish between a circle, an ellipse, and a hyperbole.</p>
<p>Came out thinking I failed the bloody test, but I got a 790. I think if you want to know what really is on the test, flip through PR at your local book store. i'm assuming you are using Barrons.</p>
<p>latus rectum is the focal chord perpendicular to the axis of the parabola. it's length is 4a, where (a, 0) or (0,a) is the focus of the parabola.</p>
<p>math 2 is very simple compared to real conic sections and calculus... But you can still have 1 or 2 such questions, but they'll most likely explain the meaning of the term they introduce. (director circle, directrix, latus rectum etc.)</p>
<p>I don't think latus rectum, vertex of a parabola, focus and directrix, etc are necessary to know in SAT math II. I have never met them in practices and test.</p>
<p>"To be honest, I went into the testing room with only know knowledge to distinguish between a circle, an ellipse, and a hyperbole.</p>
<p>Came out thinking I failed the bloody test, but I got a 790. I think if you want to know what really is on the test, flip through PR at your local book store. i'm assuming you are using Barrons."</p>
<p>I call BS. i'm in regular trig/precalc and i expect to score 700+ according to that.</p>
<p>does anyone have links to previous CC discussions of people who took the math II in June/May/January and talked about their test questions and answers?</p>
<p>Questions do get discussed, but they are not posted - just some hints.
As a matter of fact, posting real SAT questions constitutes ToS violation. Please be aware.</p>