Line : A line is a collection of infinite points in two opposite directions.
Segment : Segment is a part of line having two fixed endpoints.
From the picture attached,
AC is a segment having two fixed endpoints A and C.
And two arrows joining these points and moving in opposite directions are forming a line.
Therefore, two points that determine line AC are A and C.
Learn more,
https://brainly.com/question/18438883
