# Math Help - honors precalc problem

1. ## honors precalc problem

whitch of agnesi problem) its a curve defined as follows. let O be the origin, let T be the point (0,1), and let m be the line through T parallel to the x-axis. Let C be the circle centered at (0,0.5) with radius 0.5. For any point P on the circle besides O and T, we draw a ray from O through P. let this ray intersex m at point X. we then draw the altitude from X to the line through P parallel to the x-axis. The foot of this altitude, point A, is on the witch curve. When we trace out the resulting points A for all possible P, and include point T, we get the witch curve. Find the Parameterization for it and a function f such that the witch curve is the graph of the function y = f(x)

Thanks SO SO much

2. $a=$ radius

$x= 2a\cos(t)$
$y= a[1-\cos(2t)]$

$y= \frac{8a^3}{x^2 + 4a^2}$

3. anonymous1 that is no help at all! it is a math problem just answer it!

4. Originally Posted by dnylander
anonymous1 that is no help at all! it is a math problem just answer it!
Huh? I'm in the process of typing. Remember this is your problem, not mine.

5. Sorry dude the last time I checked you just posted a link and no answer. So are you done typing? is this the complete answer?

6. Hey, maybe you can take an honors class in using google. Why don't you give the link a try.

Witch of Agnesi -- from Wolfram MathWorld