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March 06, 2026, 05:39:24 pm
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Author Topic: TI-89 help  (Read 1529 times)  Share 

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Damo17

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TI-89 help
« on: March 03, 2009, 04:37:41 pm »
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How do you change an equation like to have just y as the subject so it can be sketched?
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Flaming_Arrow

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Re: TI-89 help
« Reply #1 on: March 03, 2009, 04:40:17 pm »
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umm u can solve for y then use that?
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Damo17

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Re: TI-89 help
« Reply #2 on: March 03, 2009, 05:34:06 pm »
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Yeah, so if I had
for I would get or
and for or .
So where would I go from there? I put them into and , is says busy for several seconds and then shows no graph.
Is this the right way to go about sketching a graph like ?
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Mao

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Re: TI-89 help
« Reply #3 on: March 03, 2009, 08:30:12 pm »
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Not quite.

On CAS, you are meant to solve the expression as a whole, not in two parts, i.e.

Code: [Select]
cSolve(abs(z+1)=abs(z-3i),y)|z=x+yi

:)
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Damo17

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Re: TI-89 help
« Reply #4 on: March 03, 2009, 08:55:22 pm »
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Quote from: Mao on March 03, 2009, 08:30:12 pm
Not quite.

On CAS, you are meant to solve the expression as a whole, not in two parts, i.e.

Code: [Select]
cSolve(abs(z+1)=abs(z-3i),y)|z=x+yi

:)

Thanks Mao, I knew I was doing something really wrong. I have my SAC tomorrow so trying to learn a few things with the TI-89 to help me.
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