The length of a segment ab is 16 units.
Given that, a= -7 and b=9.
We need to find the length of a segment ab.
In geometry, a line segment is a part of a straight line that is bounded by two distinct end points and contains every point on the line that is between its endpoints.
Now, the length of a segment ab=a+b
=7+9=16
Therefore, the length of a segment ab is 16 units.
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