The answer is 15
Hope this helps you
I believe the number of terms in the sequence would be represented by the value on top of the sigma sign, which is 8. There would be 8 terms.
The other end-point is: (2,6)
Step-by-step explanation:
Let the end-points be:

(x1,y1) = (10,12)
Mid-point = M = (6,9)
The formula for mid-point is given by:

Putting the values

Putting respective coordinates equal

The other end-point is: (2,6)
Keywords: Coordinate geometry, intercepts
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