- Wed Oct 09, 2013 3:51 am
- Forum: Geometry
- Topic: COORDINATES OF LATERA RECTA
- Replies:
**1** - Views:
**8335**

How do you get the coordinates of the ends of latera recta(latus rectum) of each conics or if there is some kind of a formula? parabola, ellipse ,hyperbola..thank you

- Wed Oct 09, 2013 2:53 am
- Forum: Geometry
- Topic: EQUATION OF ELLIPSE given directrix at y = ...
- Replies:
**3** - Views:
**12162**

ah I already understand the equation. I just wanna clarify your solution for arriving at the quadratic equation. thanks

- Wed Oct 09, 2013 2:43 am
- Forum: Geometry
- Topic: EQUATION OF ELLIPSE given directrix at y = ...
- Replies:
**3** - Views:
**12162**

Hey, thanks for the reply. I just wanna ask how did you arrive on the equation 9(sqrt{5})/5 + 2 = 4/c?Also, I tried to solve for the c without actually looking at your solution and I didn't get to arrive at solving the c using quadratic formula. I cross-multiplied c to the left side so I end up with...

- Tue Oct 08, 2013 9:31 am
- Forum: Geometry
- Topic: EQUATION OF ELLIPSE given directrix at y = ...
- Replies:
**3** - Views:
**12162**

Find the equation of the ellipse given directrix at y = (9)(sqrt of 5)/5 + 2, center at (2, -6) and one

of the vertices on (2, -4).

Spent hours on this one. I don't know if this is possible to solve. Can't find solutions on any modules. Please help. Thank you so much.

of the vertices on (2, -4).

Spent hours on this one. I don't know if this is possible to solve. Can't find solutions on any modules. Please help. Thank you so much.

- Sat Aug 17, 2013 12:41 am
- Forum: Geometry
- Topic: Equation of the Parabola
- Replies:
**1** - Views:
**8348**

1.) Find the equation of the parabola passing through (-4,-6) whose vertex at (-2,-4) and whose axis is parallel to x-axis. 2.)What is the equation of the parabola w/vertex at (2,6) and y=7 as directrix. Hope you guys can provide me answers and a step by step procedure on how to solve this one. Tha...