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11 July, 21:23

Are the lines y=-x-2 and 4x+4y=16 perpendicular? Explain

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  1. 11 July, 22:29
    0
    No, they are not perpendicular because 4x+4y=16 equals y=-x+4 in slope-intercept form.

    Two lines are perpendicular if their slopes product is - 1.

    -1*-1=1 it is not - 1.
  2. 11 July, 23:34
    0
    No, because because 4x+4y=16 is equal to y=-x+2 making the two lines have the same slope of - 1 which makes them parallel but not Perpendicular.
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