Which determinants can be used to solve for x and y in the given system of linear equations? 4 x plus 16 y is equal to negative 68 12 x plus 3 y is equal to 21
Answer
A
absolute value of cap A is equal to the 2 by 2 matrix row 1, 4 16 row 2, 12 3 , start absolute value cap A sub x end absolute value is equal to the 2 by 2 matrix, row 1, column 1, 4 column 2, negative 68 row 2, column 1, 12 column 2, 21 , start absolute value cap A sub y end absolute value is equal to the 2 by 2 matrix, row 1, column 1, negative 68 column 2, 16 row 2, column 1, 21 column 2, 3
B
absolute value of cap A is equal to the 2 by 2 matrix row 1, 4 16 row 2, 12 3 , start absolute value cap A sub x end absolute value is equal to the 2 by 2 matrix, row 1, column 1, 4 column 2, 16 row 2, column 1, negative 68 column 2, 21 , start absolute value cap A sub y end absolute value is equal to the 2 by 2 matrix, row 1, column 1, negative 68 column 2, 21 row 2, column 1, 12 column 2, 3
C
absolute value of cap A is equal to the 2 by 2 matrix row 1, 4 16 row 2, 12 3 , start absolute value cap A sub x end absolute value is equal to the 2 by 2 matrix, row 1, column 1, negative 68 column 2, 21 row 2, column 1, 12 column 2, 3 , start absolute value cap A sub y end absolute value is equal to the 2 by 2 matrix, row 1, column 1, 4 column 2, 16 row 2, column 1, negative 68 column 2, 21
D
absolute value of cap A is equal to the 2 by 2 matrix row 1, 4 16 row 2, 12 3 , start absolute value cap A sub x end absolute value is equal to the 2 by 2 matrix, row 1, column 1, negative 68 column 2, 16 row 2, column 1, 21 column 2, 3 , start absolute value cap A sub y end absolute value is equal to the 2 by 2 matrix, row 1, column 1, 4 column 2, negative 68 row 2, column 1, 12 column 2, 21