1.
A ray starts out at a point and continues off to infinity.
Symbol of the ray with a beginning point in X and passes through point Y is:
[tex]\overrightarrow{XY}[/tex]
Therefore your answer is [tex]\overrightarrow{JS}[/tex]
2.
Symbol of a line passing through points A and B is:
[tex]\overleftrightarrow{AB}[/tex]
Therefore your answer is [tex]\overleftrightarrow{KC}, \overleftrightarrow{DA}[/tex]
