Systems with the inverse matrix Quiz
Name: ______________________ Date: __________ Score: ____ / 10
10 questions. Calculator allowed. Show your working. steplyclass.com/algebra-2/systems-with-the-inverse-matrix/quiz/
1
Solve 2x + y = 5, x + y = 3 using the inverse matrixAnswer: ____________________
2
Solve 3x + 2y = 7, x + y = 3 using the inverse matrixAnswer: ____________________
3
Solve 2x + 3y = 12, x + 2y = 7 using the inverse matrixAnswer: ____________________
4
Solve 3x + y = 7, 2x + y = 5 using the inverse matrixAnswer: ____________________
5
Solve 4x + 3y = 2, x + y = 1 using the inverse matrixAnswer: ____________________
6
Solve 3x − 2y = 4, −x + y = −1 using the inverse matrixAnswer: ____________________
7
Solve 2x + 5y = 1, x + 3y = 0 using the inverse matrixAnswer: ____________________
8
Solve 3x + y = 5, x + y = 3 using the inverse matrixAnswer: ____________________
9
Solve 2x + y = 1, x + y = 2 using the inverse matrixAnswer: ____________________
10
Solve 2x + 2y = 6, x + 3y = 7 using the inverse matrixAnswer: ____________________
Answer key
- (x, y) = (2, 1)
- (x, y) = (1, 2)
- (x, y) = (3, 2)
- (x, y) = (2, 1)
- (x, y) = (−1, 2)
- (x, y) = (2, 1)
- (x, y) = (3, −1)
- (x, y) = (1, 2)
- (x, y) = (−1, 3)
- (x, y) = (1, 2)
Every answer solved step by step: steplyclass.com/algebra-2/systems-with-the-inverse-matrix/quiz/answers/