Answer:
9
Explanation:
You count Down from -7
ex -7,-6,-5
until you get to zero. While doing this the member the amount of times that you counted a number. You should have counted 7. Then you add 2. You could also add 7 and 2 right away.
(Note, if you add 7 and 2 right away, makes sure 7 is a positive number.)
Calculate the absolute difference of the 2 points, that is
| - 7 - 2 | = | - 9 | = 9 , or
| 2 - (- 7) | = | 2 + 7 | = | 9 | = 9
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