Essential Mathematics Year 10
Sketching by completing the square
Parabolas and other graphs
19:31
Lesson length
1
Chapters
Current chapter
—
Watch progress
0%
Playback speed
1.0×
Course
Parabolas and oth…
About this lesson
This video is the second in a series of videos which show how to sketch parabolas. This video looks at recapping the work on completing the square. Knowing how to complete the square means we can use the turning point form to find the turning point. This also allows us to solve equations to find the x-axis intercepts.
I explain how the knowledge of DOPS and completing the square lets us know if we can find solutions to equations. I also look at how completing the square form can also allow us to find the y-axis intercepts.
We can sketch any quadratic if we know four key pieces of information:
* Turning point
* y-axis intercept
* Two x-axis intercepts.
There are some practical examples and all the theory is fully explained.
I hope the video is useful to people!
Lesson chapters
- Introduction
Video details
- Title Sketching by completing the square
- Section Parabolas and other graphs
- Course Essential Mathematics Year 10
I would be grateful if you can support my work by subscribing to my YouTube channel.
quadratic equation (concepts/theories)
completing the square
free math videos
completing the square quadratic equations
sketching parabolas with completing the square
sketching videos
Year 10 Maths
sketching parabolas from quadratic equations
sketching parabolas by completing the square
sketching parabolas in turning point form
Chapter index
Select a line to jump to that point in the video.
Lesson discussion
Stuck on a step? Wondering about a concept? Leave a question below — Darren and the MaffsGuru team read every comment.