If 3A = [[6, -9], [12, 3]], what is the matrix A?
Correct answer: A. [[2, -3], [4, 1]]
- A. [[2, -3], [4, 1]]
- B. [[3, -6], [9, 0]]
- C. [[6, -3], [4, 1]]
- D. [[2, -9], [4, 3]]
Explanation
To find A, divide every entry of 3A by 3. This gives [[2, -3], [4, 1]], so option A is correct.
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