Systems with the inverse matrix Quiz: answer key
Every answer, with a link to its step-by-step solution
| # | Answer | Level | Solution |
|---|---|---|---|
| 1 | (x, y) = (2, 1) | Easy | Solved step by step |
| 2 | (x, y) = (1, 2) | Easy | Solved step by step |
| 3 | (x, y) = (3, 2) | Easy | Solved step by step |
| 4 | (x, y) = (2, 1) | Easy | Solved step by step |
| 5 | (x, y) = (−1, 2) | Medium | Solved step by step |
| 6 | (x, y) = (2, 1) | Medium | Solved step by step |
| 7 | (x, y) = (3, −1) | Medium | Solved step by step |
| 8 | (x, y) = (1, 2) | Harder | Solved step by step |
| 9 | (x, y) = (−1, 3) | Harder | Solved step by step |
| 10 | (x, y) = (1, 2) | Harder | Solved step by step |
Grade
Count your right answers and divide by the number of questions: A 90% or more, B 80%, C 70%, D 60%, F below 60%.