Which pair of equations represents two perpendicular lines? Option A: - 3x + 2y = 10 and 3y = 2x + 12 Option B: 2x + 5y = 45 and y + 2/5x = - 9 Option C: x = 4y + 4 and x + 4y=4 Option D: 7x + 4y = 20 and y-3=4/7x

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Mathematics

Braedon

22 October, 00:41

Which pair of equations represents two perpendicular lines? Option A: - 3x + 2y = 10 and 3y = 2x + 12 Option B: 2x + 5y = 45 and y + 2/5x = - 9 Option C: x = 4y + 4 and x + 4y=4 Option D: 7x + 4y = 20 and y-3=4/7x

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Chivas · Answer 1

For the equation of the line expressed as Ax + By + C = 0, the value of the slope (m) is calculated by - A / B. For perpendicular lines, the slope of one should be the negative reciprocal of the other. From the choices given, the lines that are perpendicular is Option A.