Given a linear transformation, determine matrix A

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WK95
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Homework Statement


Problem statement: L: R^2 to R^2 is a linear transformation with L(1,0) = (1,2) and L(0,1) = (-3,4). Determine the matrix A in M2(R) such that L(x) = Ax for every x in R^2.



Homework Equations



The Attempt at a Solution


What is M_2 supposed to be? Is A supposed to be the matrix that produces those above linear transformations?
 
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pretty much, yes. can you determine what the matrix is?
 
WK95 said:

Homework Statement


Typed problem: L: R^2 → R^2 is a linear transformation with L(1, 0) = (1, 2) and L(0, 1) = (-3, 4). Determine the matrix A in M2(R) such that L(x) = Ax for every x in R^2.



Homework Equations



The Attempt at a Solution


What is M_2 supposed to be? Is A supposed to be the matrix that produces those above linear transformations?
M2(R) is the set of 2 X 2 matrices with elements from the field of real numbers. Other notation I've seen is M2x2.
 
Once a basis has been specified, each linear transformation has a unique matrix representation. Think about the vectors that they gave you ##L## acting on. Do they form a basis? If so, how would they be linked to the form of the matrix?