Answer:
-2 1
1 1
is matrix D
Step-by-step explanation:
Given that linear transformation L(x)=Dx that transforms the vector x=Linear transformation L(x)=Dx that transforms the(1,4) to the vector L(x)= (3,6) and x=(2,5) to vector L(x)= (0,9)
Since two dimensional vectors are used D is a 2x2 matrix
Let D = [tex]\left[\begin{array}{ccc}a&b\\c&d\end{array}\right][/tex]
D*(1,4) = (a+4c, b+4d) = (2,5)
and D*(3,6) = (3a+6c, 3b+6d) = (0,9)
a+4c =2 and 3a+6c =0
Solving c =1 and a = -2
Similarly b+4d =5 and 3b+6d =9
Solving d=1 and b =1
Hence matrix D would be
-2 1
1 1