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ParthKohli
Group Title
Can we use the ‘maps to’ symbol to show a solution of an equation?
 one year ago
 one year ago
ParthKohli Group Title
Can we use the ‘maps to’ symbol to show a solution of an equation?
 one year ago
 one year ago

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ParthKohli Group TitleBest ResponseYou've already chosen the best response.0
For example,\[\rm 3x = 18 \implies x\mapsto6\]Will that be the correct notation?
 one year ago

ParthKohli Group TitleBest ResponseYou've already chosen the best response.0
Also check this one:\[\rm x^2 = 9\implies x\mapsto(3,3)\]
 one year ago

Jonask Group TitleBest ResponseYou've already chosen the best response.0
\[f:x \rightarrow3x\] is that cornened with functions
 one year ago

oldrin.bataku Group TitleBest ResponseYou've already chosen the best response.1
The first is OK because it defines x as a constant function.
 one year ago

oldrin.bataku Group TitleBest ResponseYou've already chosen the best response.1
The second defines x as a constant function yielding (3,3) which doesn't make much sense here... perhaps you mean: \[x=\pm3\text{ or }x\in\{3,3\}\]
 one year ago

estudier Group TitleBest ResponseYou've already chosen the best response.1
x is mapped to 3x 18
 one year ago

ParthKohli Group TitleBest ResponseYou've already chosen the best response.0
What does “mapped to” exactly mean?
 one year ago

Jonask Group TitleBest ResponseYou've already chosen the best response.0
we willneed to variables to talk about mapping
 one year ago

Jonask Group TitleBest ResponseYou've already chosen the best response.0
we will need two variables
 one year ago

estudier Group TitleBest ResponseYou've already chosen the best response.1
mapped is in relation to functions.
 one year ago

ParthKohli Group TitleBest ResponseYou've already chosen the best response.0
Yes, okay, but how can you say that \(\rm x\) maps to 3 or 3?
 one year ago

oldrin.bataku Group TitleBest ResponseYou've already chosen the best response.1
@ParthKohli a map is a relation between sets; \[x\mapsto3\text{ is essentially the same as }F(x)=3\]
 one year ago

Jonask Group TitleBest ResponseYou've already chosen the best response.0
dw:1350632977047:dw f is a function that maps x to y
 one year ago

ParthKohli Group TitleBest ResponseYou've already chosen the best response.0
Yes, that's exactly what I am taught. Was just confirming. :)
 one year ago

estudier Group TitleBest ResponseYou've already chosen the best response.1
Where y = f(x)....
 one year ago

ParthKohli Group TitleBest ResponseYou've already chosen the best response.0
Well, so how can say write this? x maps to either 3 or 3.
 one year ago

ParthKohli Group TitleBest ResponseYou've already chosen the best response.0
Yes, yes, I know that. :P
 one year ago

Jonask Group TitleBest ResponseYou've already chosen the best response.0
\[y^29=x\]
 one year ago

estudier Group TitleBest ResponseYou've already chosen the best response.1
So where is your function?
 one year ago

oldrin.bataku Group TitleBest ResponseYou've already chosen the best response.1
\[x : \mathbb{R}\to{3,3} \]
 one year ago

ParthKohli Group TitleBest ResponseYou've already chosen the best response.0
Here:\[\rm x^2  9 = 0\]
 one year ago

oldrin.bataku Group TitleBest ResponseYou've already chosen the best response.1
\[x\in\{3,3\}\text{ or }x=\pm3\]
 one year ago

ParthKohli Group TitleBest ResponseYou've already chosen the best response.0
As I said, I need to use the mapping symbol for showing the solution of an equation.
 one year ago

ParthKohli Group TitleBest ResponseYou've already chosen the best response.0
My current question is, how can we use the mapping symbol to show two solutions of an equation?
 one year ago

oldrin.bataku Group TitleBest ResponseYou've already chosen the best response.1
That makes virtually no sense. Do you know what the symbol means?
 one year ago

estudier Group TitleBest ResponseYou've already chosen the best response.1
That is not usual...
 one year ago

ParthKohli Group TitleBest ResponseYou've already chosen the best response.0
Yes, I know what mapping means... ugh. Can we even use the mapping symbol to show two solutions of an equation?
 one year ago

estudier Group TitleBest ResponseYou've already chosen the best response.1
Not really...
 one year ago

Jonask Group TitleBest ResponseYou've already chosen the best response.0
\[x:y \rightarrow \pm \sqrt{9}\]
 one year ago

oldrin.bataku Group TitleBest ResponseYou've already chosen the best response.1
If you knew what a map was you wouldn't ask a question like that; no, you can't because that's not what it's for. That's like asking "can I use a telescope to write?"
 one year ago

ParthKohli Group TitleBest ResponseYou've already chosen the best response.0
How would you represent that the solutions of equation \(\rm x^2 = 9\) are \(3\) and \(3\)?
 one year ago

oldrin.bataku Group TitleBest ResponseYou've already chosen the best response.1
\[x=\pm3\text{ or }x\in\{3,3\}\]
 one year ago

estudier Group TitleBest ResponseYou've already chosen the best response.1
Well, one way is just to write it like u just did...:)
 one year ago

ParthKohli Group TitleBest ResponseYou've already chosen the best response.0
What will the full mathematical sentence be? @estudier @oldrin.bataku
 one year ago

estudier Group TitleBest ResponseYou've already chosen the best response.1
x^2 = 9 > x = plus/minus 3
 one year ago

ParthKohli Group TitleBest ResponseYou've already chosen the best response.0
\[\rm x^2 = 9 \implies x=\pm 3\]right?
 one year ago

estudier Group TitleBest ResponseYou've already chosen the best response.1
That's the same, yes...
 one year ago

ParthKohli Group TitleBest ResponseYou've already chosen the best response.0
Thank you both, I'm returning with another question. :P
 one year ago

oldrin.bataku Group TitleBest ResponseYou've already chosen the best response.1
\[(x^2=9)\implies(x=\pm3)\]
 one year ago

UnkleRhaukus Group TitleBest ResponseYou've already chosen the best response.0
use \mapsto to show the related sets , the independent variable (x) and the dependent variable f
 one year ago
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