<p>what does omitting 2 and having 3 wrong equal to, approximately?</p>
<p>for the question about intersecting the x axis: x2 + k, what values of k...whas it k<0 or k<= 0</p>
<p>i think i got (-2,5) as well for the conic question. anyone else get this?</p>
<p>i didnt even know what a conic was. just sort of guessed it</p>
<p>"what does omitting 2 and having 3 wrong equal to, approximately?"</p>
<p>probably an 800 or 790</p>
<p>it was k<=0..
it intersects at x=0..</p>
<p>well its tangent there, im not sure if a tangent counts as an intersection, but that's what i said too.</p>
<p>it was k<0 because it's tangent if k=0</p>
<p>are you sure? I do not think it matters if it is tangent, the question specifically asks for whether it intersects the x-axis</p>
<p>no i think it was sth like 1.42</p>
<p>a tangent line intersects a curve in a single point. (for that specific question)</p>
<p>Anyways I took the test as a tutor (already took it three years ago) and it seemed much easier than the past tests.</p>
<p>YES!!! so it's k<=0, right???</p>
<p>I think the definition of a tangent is that it touches, but does not intersect the line, although you could be right...</p>
<p>or it's not called an intersection...</p>
<p>yeah, for the conic the answer is (-2,5)-> complete the square</p>
<p>the parabola only intersects the x-axis at one point when k=0, therefore whether tangent or not, that should be included in the answer</p>
<p>what about the question that asks the value of x as it reaches 1.5 or stuff like that. i don't remember it well.</p>
<p>I don't remember the answer, but you had to cancel out the (2x-3) factors, then substitute 1.5 into the equation and solve it out</p>
<p>what was the one having to do with the inverse of f(x) or something</p>
<p>"the parabola only intersects the x-axis at one point when k=0, therefore whether tangent or not, that should be included in the answer"</p>
<p>It doesn't if k<0, it intersects the x-axis at two if this is the case</p>
<p>Wait did that question ask if it intersects the x-axis once or just at all??? I thought it was at all........</p>
<p>so i put when k < or equal to 0</p>