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Point C is graphed on a number line at –7. Point D is 13 units away from point C on the number line.

What could be the coordinates of point D?

  
   Choose all answers that are correct.

 
   A.
–20

   B.
3

   C.
6

   D.
20

Answer :

(-7)+13=6
(-7)-13=(-20)

Therefore A and C are the possible coordinates

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