How do I find the values of b and y?[A][b = [3 y] 4]

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Homework Help Overview

The discussion revolves around finding the values of variables b and y in a matrix equation involving an unspecified matrix A. The context suggests a linear algebra problem related to matrix operations.

Discussion Character

  • Exploratory, Assumption checking

Approaches and Questions Raised

  • Participants explore the relationship between the variables and the matrix A, questioning the implications of not knowing A's value. There is a discussion about the format of the matrix and its components.

Discussion Status

The conversation is ongoing, with participants raising questions about the definition of A and its role in solving for b and y. Some guidance has been offered regarding the relationship between the variables and the matrix, but no consensus has been reached.

Contextual Notes

There is a noted lack of information regarding the matrix A, which is critical to solving the problem. One participant mentions that this question was part of an exam, indicating potential constraints on the information provided.

Ry122
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How do I find the values of b and y?
[A][b = [3
y] 4]
 
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You are going to format that better, aren't you?
 
[A][b y]=[3 4]
y is below b
4 is below 3
 
And what is A?
 
That's a lot like asking: "What is Ax= 4?" without telling us what A is. The only possible answer is "x= 4/A" or "X= A-14".

The only possible answer to your question is
[tex]\left[\begin{array}{c} b \\ y \end{array}\right]= A^{-1}\left[\begin{array}{c} 3 \\ 4\end{array}\right][/tex]
until we know what "A" is.

Of course, if the problem really was what you said, that may be the correct answer!
 
thats what i thought. it was a question in an exam i recently had.
 

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