How to tell if infinite or finite geometric series?

The series is finite if the number of terms or the last term is given. If a summation sign is used, the limit of the summation is infinity for an infinite series.
1 + 2 + 4 + 8 + ... . . . . . is an infinite series. It has no last term.


1 + 2 + 4 + 8 + ... + 1024 . . . . . is a finite series. The last term is given.
The upper limit on the summation symbol is a finite number.

The answer would he -4,-2 because the points are just on the opposite side. since the x axis is +4 it's going to he -4 and since the y axis is -2 it stays there because whaen rotated it stays in the third quadrant