Final answer:
The question is about the starting point on a graph where a relationship or pattern begins, and the usual starting point is the origin, where the x-axis and y-axis intersect at point (0, 0).
The Correct Option is; B) Origin.
Step-by-step explanation:
The question "Where do most relationships start graph?" seems to imply the starting point on a graph where one might observe a relationship or pattern beginning.
The most common starting point for relationships or functions on a graph is the origin, which is the point where the x-axis and y-axis intersect (0, 0). This is typically where the plot of a line or curve starts when depicting a relationship between two variables that begins at a zero point for both variables.
However, without the context of the specific graphs labeled A, B, and C, it's difficult to provide a definitive answer. Nonetheless, the second to last bullet point stating "the middle of the line.
(This reference point can also be called "the ori-gin")", suggests the correct answer here is B) Origin, considering it's referring to the start of a graphed relationship at the point (0,0).