Ratios and directional line segments

Question

What are the coordinates of the point on the directed line segment from (−9,−1) to (−9,−10) that partitions the segment into a ratio of 2 to 1?

Answer 1

The segment is -9 units long (-10 - (-1)).

Divide into three parts of -3 units each

(-9, -1), (-9, -7), (-9, -10)