Advanced Algebra: Quadratic Equations (G9)

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Sequences and Series (G9)

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question 1 of 4 Grade: Nine - G9

Q: Given that M = [[2, 4], [0, -2]] and N = [[1, -1], [3, 0]], find the matrix N - ½M.

Add the two equations: (2x + 5x) + (-y + y) = 5 + 16 => 7x = 21 => x = 3. Substitute into first: 2*3 - y = 5 => 6 - y = 5 => y = 1.

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Add the two equations: (2x + 5x) + (-y + y) = 5 + 16 => 7x = 21 => x = 3. Substitute into first: 2*3 - y = 5 => 6 - y = 5 => y = 1.

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