All
Search
Images
Videos
Shorts
Maps
News
More
Shopping
Flights
Travel
Notebook
Report an inappropriate content
Please select one of the options below.
Not Relevant
Offensive
Adult
Child Sexual Abuse
Length
All
Short (less than 5 minutes)
Medium (5-20 minutes)
Long (more than 20 minutes)
Date
All
Past 24 hours
Past week
Past month
Past year
Resolution
All
Lower than 360p
360p or higher
480p or higher
720p or higher
1080p or higher
Source
All
Dailymotion
Vimeo
Metacafe
Hulu
VEVO
Myspace
MTV
CBS
Fox
CNN
MSN
Price
All
Free
Paid
Clear filters
SafeSearch:
Moderate
Strict
Moderate (default)
Off
Filter
11:29
Khan Academy
Focus & directrix of a parabola from equation
Given the parabola equation y-23/4=-1/3(x-1)^2, Sal finds the parabola's focus and directrix using the general formula for a parabola whose focus is (a,b) and directrix is y=k.
Jan 27, 2015
Focus Music
11:55:01
Deep Focus Music for Work Flow and Improve Mental Clarity
YouTube
Alpha Focus
56 views
1 month ago
11:54:58
LIVE 24/7 Deep Focus Music – Distraction-Free Concentration for Work & Study
YouTube
Alpha Focus
153 views
2 months ago
4:08:41
Focus Music | Deep Concentration Music for Studying & Productivity While Working
YouTube
Zen Music Melodies
226 views
11 months ago
Top videos
9:48
焦点 & 准线的双曲线方程 (视频)
Khan Academy
Jan 26, 2015
4:07
Khan Academy
Khan Academy
Jan 26, 2015
4:39
Identifying if a parabola exists from given key features
Khan Academy
Sal Khan
6 months ago
Focus Tips
How To Increase Focus: 7 Ultra-Fast And Science-Backed Tips
magneticmemorymethod.com
Jul 31, 2020
5:46
5 Focus Exercises That Actually Work (Boost Concentration FAST!)
YouTube
Focused Peter
18 views
3 months ago
10:25
How to Work with INTENSE Focus - 3 Steps Most People Skip
YouTube
Thomas Frank
220.9K views
Oct 26, 2021
9:48
焦点 & 准线的双曲线方程 (视频)
Jan 26, 2015
Khan Academy
4:07
Khan Academy
Jan 26, 2015
Khan Academy
4:39
Identifying if a parabola exists from given key features
6 months ago
Khan Academy
Sal Khan
0:18
Brazilian Men Videos Featuring Nicolas Prattes Edit
28.9K views
Dec 20, 2023
TikTok
brazilianiconics
A Family of Confocal Conics Conics that share a focus are calle... | Filo
5.6K views
Mar 5, 2025
askfilo.com
0:15
We’re back and ready for the year ahead! ✨ Our offices officially reo
…
284 views
2 months ago
Facebook
Proconics
SOLVED:In Exercises 5 through 14, the equation is that of a conic havi
…
4 months ago
numerade.com
A conic has focus (1,0) and corresponding directrix x y=5. If t..
…
5.7K views
Aug 4, 2024
askfilo.com
The parabola y2 = kx passes through the point (4, -2). Find its la
…
Sep 16, 2024
shaalaa.com
0:05
Mathematics Hub on Instagram: "Conic sections #viralreels #viral
…
2.5K views
4 months ago
Instagram
mathematicshub01
15:02
Introduction to Conic Sections
161.2K views
Feb 21, 2014
YouTube
ThinkwellVids
9:24
Introduction to Conics
44.8K views
Jan 30, 2014
YouTube
Eddie Woo
3:52
Introduction to conics
59.8K views
Dec 5, 2012
YouTube
Jake Earle
34:50
Hyperbolas - Conic Sections
1.1M views
Apr 29, 2021
YouTube
The Organic Chemistry Tutor
7:46
Graphing Conic Sections Part 1: Circles
202.7K views
Nov 12, 2017
YouTube
Professor Dave Explains
5:28
General Method for Parabola Construction
1.5M views
Oct 15, 2017
YouTube
Manas Patnaik
4:06
Focus and directrix introduction | Conic sections | Algebra II | Khan
…
449.9K views
Jan 26, 2015
YouTube
Khan Academy
10:58
Introduction to conic sections | Conic sections | Algebra II | Khan
…
1.1M views
Jun 15, 2009
YouTube
Khan Academy
5:20
Learn how to graph a parabola in conic sections
17.6K views
May 16, 2012
YouTube
Brian McLogan
11:28
Finding focus and directrix from vertex | Conic sections | Algebra I
…
302.9K views
Jan 27, 2015
YouTube
Khan Academy
16:19
Ellipse Construction in AutoCAD Made Easy | Eccentricity Method T
…
286.4K views
Oct 14, 2020
YouTube
Srikanth Rangdal's CADiMate
1:19:02
Conic Sections - Circles, Ellipses, Parabolas, Hyperbola - How To Gr
…
2.7M views
Feb 6, 2016
YouTube
The Organic Chemistry Tutor
53:27
08 - Conic Sections - Hyperbolas, Part 1 (Graphing, Asymptotes, Hy
…
70.6K views
Dec 17, 2019
YouTube
Math and Science
42:10
Polar Equations of Conic Sections In Polar Coordinates
174.2K views
Apr 8, 2018
YouTube
The Organic Chemistry Tutor
13:49
Foci of an ellipse | Conic sections | Algebra II | Khan Academy
624.3K views
Jul 7, 2009
YouTube
Khan Academy
11:45
Equation of a parabola by completing the square
338.7K views
May 1, 2012
YouTube
Brian McLogan
2:22
How To Draw An Ellipse By Focus Directrix Method - Engineering Cu
…
1M views
Oct 30, 2018
YouTube
EzEd Channel
29:17
Conic Sections: Hyperbolas, Ellipses, Parabolas, Circles (How t
…
52.5K views
Apr 13, 2020
YouTube
Mario's Math Tutoring
5:51
Finding the vertex focus and directrix by completing the square
83.2K views
Apr 8, 2013
YouTube
Brian McLogan
See more videos
More like this
Feedback