Jelani wrote the system of linear equations to represent the number of student and adult tickets he and his friend sold to their school play. 12 s plus 10 A is equal to 128 16 s plus 21 A is equal to 232 Jelani also wrote the augmented matrix to represent this system. Which matrix could Jelani have written?
Answer
A
the 2 by 3 matrix row 1, 12 10 128 row 2, 16 21 232
B
the 2 by 2 matrix row 1, 12 10 row 2, 16 21
C
the 1 by 3 row matrix 12 10 128
D
the 3 by 2 matrix row 1, 12 16 row 2, 10 21 row 3, 128 232