Aray is a defined term because it

has no width or depth

is described using an undefined term

has an informal definition

travels forever in one direction

A ray is a defined term because it  is described using an undefined term .

Step-by-step explanation:

In geometry , a ray is a line with begin from one single endpoint that is known as point of origin and that extends in one direction infinitely .

The three undefined terms in geometry :

1) point   2) line  3) plane

These undefined terms in geometry are use to define the other terms in geometry.

In the definition of ray we always use two undefined terms : a) line b) point

Thus, A ray is a defined term because it  is described using an undefined term.

answer: a.

step-by-step explanation: the answer is a. because, you need to converge the fractions to find a solution.

it has the same slope and a different y-intercept

hope this : )