If rank of matrix is = rank of augmented matrix = number of variables. Then system has unique solution.
Define the linear transformation T:?3??4 by T(x )=Ax . Find a vector x whose image under T is b (1 pt) Let 4 5 2 -2 5 -3 2 and b-10 -7 2 1 -4 Define the linear transformation T : R3 ? R4 by T(x-Ax Find a vector x whose image under T is b. x= Is the vectorx unique? choose
Previous Problem Problem List Next Problem (1 point) Let 07 A = -5 6 6 and b -3 3 -2 L 9 -437 96 R4 by T) = AE. Find a vector ã whose image under T is . Define the linear transformation T: R3 Is the vector i unique? choose Note: In order to get credit for this problem all answers must be correct
(1 point) Let [ 4 51 [ 51 A = -1 -2 and b = 1 : 1-3 -3] 1-6] Define the linear transformation T : R2 → R3 by T(x) = Añ. Find a vector à whose image under T is b. Is the vector x unique? choose
(1 point) Let 1-11 ſi -1 31 A = 0 1 -1 and b=1-2 L-1 -2 0 [7] Define the linear transformation T:R* R* by T(T) = A. Find a vector a whose image under T is b. Is the vector i unique? choose choose unique Note: In order to get cred not unique all answers must be correct
Let A= and 6 = Define the linear transformation T:R? +R by T'(X) = Ai. Find a vector # whose image under T' is 6. Is the vector i unique choose choose unique Submit answer not unique
(1 point) Let 5 -15 50 A=1-1 2 4 | and b=I-12 4 16 」 A linear transformation T : R2 → R3 is defined by T x) = Ax. Find an x in R2 whose image under T is b. X2
[1 41 and we [-121 (1 point) Let A= 3 12 Find k so that there exists a vector x whose image under the linear transformation T(x) = Axis w. Note: The image is what comes out of the transformation. k= Find k so that w is a solution of the equation Ax = 0
4 1 0 -3 1 If T is defined by Tix)= Ax, find a vector x whose image under Tis b, and determine whether x is unique. Let A and Find a single vector x whose image under Tis b.
8. Let A be a 5 x 4 matrix such that its reduced row echelon form has 4 pivot positions (leading entries). Which of the following statements is TRUE? a) The linear transformation T : R4 → R5 defined by T(X) = AX is onto. b) AX = 0 has a unique solution. c) Columns of A are linearly dependent. d) AX b is consistent for every vector b in R
6 image of x under 4. Problem 2: With the transformation T(x)- AX, and the vector b T, find if it exists. (13 points). Is the transformation one-to-one or onto, neither or both? Justify your answer. (7 points). 6 image of x under 4. Problem 2: With the transformation T(x)- AX, and the vector b T, find if it exists. (13 points). Is the transformation one-to-one or onto, neither or both? Justify your answer. (7 points).