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Mathematics, 25.10.2020 06:00 2019jbash

Determine which of the four lines are perpendicular? Iy=3x-24
II. 3x + 4y = 12
III. The line thru (1,-3) and (7.-11)
IV. 3x – 4y = 20
Line I is perpendicular to Line IV
Line I is perpendicular to Line III
Line Il is perpendicular to Line IV
Line I is perpendicular to Line III and Line IV

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