Question
$1.00 Find the focus of a parabola
- From Mathematics: Linear-Systems
- Closed, but you can still post tutorials
- Due on Mar. 19, 2010
- Asked on Mar 16, 2010 at 11:20:20PM
Q:
find the focus of the parabola: y^2 -4y-4x=0
$1.00
The Correct Answer With Work Shown
- This tutorial hasn't been purchased yet.
- Posted on Mar. 17, 2010 at 12:24:36AM
A:
Preview: ...
y 2 - 4y + 4 - 4x = 0 + 4
We are adding the square of (1/2 of -4) to both sides. (-4/2) 2 = 4
(y - 2) 2 - 4x = 4 Factoring y2 - ...
Attachments:
graph.png (4K)
The full tutorial is about 197 words long plus attachments.
Attachments:
graph.png (4K) $1.00
Parabola
- This tutorial hasn't been purchased yet.
- Posted on Mar. 17, 2010 at 12:27:19AM
A:
Preview: ... y^2 -4y-4x=0
To solve this problem we must remember :
the general equation of a parabola with ...
The full tutorial is about 79 words long .
$1.00
Focus of a parabola-solution with graph
- This tutorial hasn't been purchased yet.
- Posted on Mar. 17, 2010 at 12:33:13AM
A:
Preview: ... e at ...
The full tutorial is about 4 words long plus attachments.
answer_freshmansenior.doc (82K) $0.25
Parabola
- This tutorial hasn't been purchased yet.
- Posted on Mar. 17, 2010 at 10:56:33AM
Posted by :
A:
Preview: ... distance from the vertex to the focus.
y^2 - 4y = 4x we are going to complete the square
y^2 - 4 ...
The full tutorial is about 94 words long .