Question 1 (1 point) = (DListen } ' If a system of linear equations is represented by the matrix below, what is the solution of the system? Write your answer in this order: x, y. Use a comma (,) between the answers for x and y (i.e, 7,9}. If a parameter is needed, use letter t. Place the term containing the letter t at the end of the expression. Please follow the example in the brackets (i.e., 4+t,t) Do not use brackets. Do not USE spaces. 104 018 Question 3 (3 points) E 4:)Listen p l If a system of linear equations is represented by the matrix below, what is the solution of the system? Write your answer in this order: x, y, z. Use a comma (,) between the answers for x, y, and 2 (Le, 7,9,11). If a parameter is needed, use letter t. Place the term containing the letter t at the end of the expression. Please follow the example in the brackets (l.e., 4+t,-1 +2t,t} Do not use brackets. Do not use spaces. 1115 0114 Question 4 (2 points) E (Listen k ' Given the matrix below, perform the following row operation: R3 being replaced by R3 2R1? Write your answer as a matrix using the following syntax: square brackets, the entries are listed by rows (with one space between each entry), with the rows separated by a semicolon. Please follow this example: [4 512 3;5 6101;10 2 -1] 1 0 2 3 8 6 0 7 2 9 4 5 Question 5 (2 points) Listen Which of the following is the correct form of the matrix below after performing row operations to get it into a reduced row echelon form? 7 0 -1 2 Of1 0 -13 0 -1 2 Of1 0 15 01 -2 Of1 6 31Question 6 (2 points) Listen Given the following matrices, which answer is correct: 1 0 7 A = -4 1 3 1 2 B= 7 0 8 O 57 30 A x B = 13 4 OB x A is not possibleQuestion 7 (3 points) E ())Listen y ' Given the information below, find matrix A. Write your answer as a matrix using the following syntax: square brackets, the entries are listed by rows (with one space between each entry), with the rows separated by a semicolon. Please follow this example: [4 1f5;5 -1:'6] 404-1sz [:8 El Question 8 (2 points) E 1)) Listen ' > ' Given the information below, find the diagonal matrix A. Write your answer as a matrix using the following syntax: square brackets, the entries are listed by rows (with one space between each entry), with the rows separated by a semicolon. Please follow this example:[1 0 0,0 4/5 mo 0 2/9] 6400 3_ 1 14050 001 Question 9 (3 points) Listen Find a and b so that the following matrix is symmetric. Write your answer in this order: first the value for a, then the value for b. Separate the values by a coma (i.e. 4,-10). Do not use brackets. Do not use spaces. Keep answers as fractions if necessary. 7 2b a + 4 A = a - 1 -2 -5 6 -5 0