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#3 2012-11-28 01:18:38
- anonimnystefy
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Re: I cant figure this out PLEASE HELP
Hi daydoe12
Last edited by anonimnystefy (2012-11-28 01:20:37)
The limit operator is just an excuse for doing something you know you can't.
“It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman
“A secret's worth depends on the people from whom it must be kept.” ― Carlos Ruiz Zafón
#4 2012-11-28 06:43:44
- bob bundy
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Re: I cant figure this out PLEASE HELP
Good answer, Stefy.
I think yours is correct and I have misunderstood what is wanted.
I'll leave the post as a reminder to me to read the question!
Bob
You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei
#5 2012-11-28 08:08:20
- anonimnystefy
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Re: I cant figure this out PLEASE HELP
Hmmm... I thought there was another reason.
The limit operator is just an excuse for doing something you know you can't.
“It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman
“A secret's worth depends on the people from whom it must be kept.” ― Carlos Ruiz Zafón
#7 2012-11-28 08:16:14
- anonimnystefy
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Re: I cant figure this out PLEASE HELP
Doesn't matter. I hope we solved the OP's problem.
The limit operator is just an excuse for doing something you know you can't.
“It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman
“A secret's worth depends on the people from whom it must be kept.” ― Carlos Ruiz Zafón
#9 2012-11-29 18:59:53
- bob bundy
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Re: I cant figure this out PLEASE HELP
Stefy just looked for a formula of the form y = mx + c so that when x = -2, then y = 3, and similarly when x = 8, y = 5.
My answer used a similar idea but I think his is the right way.
If you think about the straight line graph this produces, every point between -2 and 8, will map onto every point between 3 and 5
And the mapping is reversible.
To prove it, you'd have to show the mapping is 1:1 in both direcctions, and that a point inside the first interval maps to a point inside the resulting interval.
Bob
You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei
#11 2012-12-01 01:48:15
- anonimnystefy
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Re: I cant figure this out PLEASE HELP
Hi daydoe12
Bob explained very well in post #9. I don't think I could any better at explaining it.
The limit operator is just an excuse for doing something you know you can't.
“It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman
“A secret's worth depends on the people from whom it must be kept.” ― Carlos Ruiz Zafón
#14 2012-12-04 16:05:51
- bobbym
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Re: I cant figure this out PLEASE HELP
Hi daydoe12;
You have -2 -> 3 and 8 -> 5 so call x=-2 and y =3 in the first equation and x = 8 and y = 5 in the second.
When you solve that you get m = 1/5 and b = 17 / 5. Now plug in to the first equation.
In mathematics, you don't understand things. You just get used to them.
Probability is the most important concept in modern science, especially as nobody has the slightest notion what it means.
90% of mathematicians do not understand 90% of currently published mathematics.
#15 2012-12-04 20:52:11
- anonimnystefy
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Re: I cant figure this out PLEASE HELP
bob bundy wrote:
Thank you Stefy.
And there was me, about to award you the "Teacher of the Month Award"
Bob
I hope you are kidding.
Hi daydoe12
I'm male, not female...
The limit operator is just an excuse for doing something you know you can't.
“It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman
“A secret's worth depends on the people from whom it must be kept.” ― Carlos Ruiz Zafón