Which table represents a linear function?

i think that answer is option A because the y axis is consistently added 4 for every time x is added 1

Step-by-step explanation:

Assuming that the question you're asking is:
What is the length from the center of a circle to the outside called?

It's called a radius

Center to outside = RADIUS
Straight line from one side to another = either arch or DIAMETER
Distance around the circle = CIRCUMFERENCE

Hope that helps and correct me if I'm wrong!