13) The coordinates of the foot of the perpendicular drawn from the point (3,4) on the line 2x+y-7=0 A) (9/5,17/5) B) (1,5) C) (-5,1) D) (1,-5)
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If we add 1 to a natural number, we get its successor. If we subtract 1 from a natural number, we get its predecessor.
The successor of 16 is 16 + 1 = 17, that of 19 is 19 +1 = 20 and so on. The number 16 comes before 17, we say that the predecessor of 17 is 17–1=16, the predecessor of 20 is 20 – 1 = 19, and so on.
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