Answer:
Ray. Definition: A portion of a line which starts at a point and goes off in a particular direction to infinity. Try this Adjust the ray below by dragging an orange dot and see how the ray AB behaves. Point A is the ray's endpoint. -Google
Step-by-step explanation:
A line which starts at a point with given coordinates, and goes off in a particular direction to infinity.
Simpler Definition- A line that starts at a point and goes off in one direction that never stops
b. (4,1/2)
90 degrees
angle ABC is a right angle
