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October 21, 2025, 09:51:42 pm
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Author Topic: turning point  (Read 2108 times)  Share 

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cootcoot

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turning point
« on: June 15, 2008, 10:01:52 pm »
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how do you figure out the turning point of a porabola?
does anyone remember that from years ago?
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Neobeo

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Re: turning point
« Reply #1 on: June 15, 2008, 10:04:11 pm »
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If you are given it in the form , then the turning point is at (a,b).

Otherwise you try to convert the quadratic you are given into something of that form.
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Re: turning point
« Reply #2 on: June 15, 2008, 10:04:21 pm »
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turning point is h, k
« Last Edit: September 21, 2009, 11:26:17 pm by Flaming_Arrow »
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cootcoot

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Re: turning point
« Reply #3 on: June 15, 2008, 10:07:00 pm »
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how do you get it into that form?
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Flaming_Arrow

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Re: turning point
« Reply #4 on: June 15, 2008, 10:08:14 pm »
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Quote from: cootcoot on June 15, 2008, 10:07:00 pm
how do you get it into that form?


what is the question exactly?
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cootcoot

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Re: turning point
« Reply #5 on: June 15, 2008, 10:11:34 pm »
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how do you get a porabola equ that is say into the form?
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Glockmeister

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Re: turning point
« Reply #6 on: June 15, 2008, 10:11:50 pm »
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The other way of working out a turning point is by using differentiation. At a turning point the gradient is zero i.e

But answering your question






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Neobeo

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Re: turning point
« Reply #7 on: June 15, 2008, 10:12:39 pm »
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Quote from: cootcoot on June 15, 2008, 10:11:34 pm
how do you get a porabola equ that is say into the form?

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Flaming_Arrow

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Re: turning point
« Reply #8 on: June 15, 2008, 10:14:35 pm »
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Quote from: cootcoot on June 15, 2008, 10:11:34 pm
how do you get a porabola equ that is say into the form?



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cootcoot

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Re: turning point
« Reply #9 on: June 15, 2008, 10:21:26 pm »
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oh yeah! so you just complete the square..
thanks for that everyone.
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dcc

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Re: turning point
« Reply #10 on: June 15, 2008, 10:24:54 pm »
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Therefore turning point in general is at:



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Glockmeister

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Re: turning point
« Reply #11 on: June 16, 2008, 12:20:10 am »
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Quote from: dcc on June 15, 2008, 10:24:54 pm


Therefore turning point in general is at:





I remember a class I had in Accelerated Maths once where the teacher spent the whole lesson writing down the proof of completing the square.
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Mao

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Re: turning point
« Reply #12 on: June 16, 2008, 12:26:15 am »
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Quote from: Glockmeister on June 16, 2008, 12:20:10 am
Quote from: dcc on June 15, 2008, 10:24:54 pm


Therefore turning point in general is at:





I remember a class I had in Accelerated Maths once where the teacher spent the whole lesson writing down the proof of completing the square.

tsk, its not a proof, its a derivation :P
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Glockmeister

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Re: turning point
« Reply #13 on: June 16, 2008, 12:43:51 am »
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Oh bleh
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