Question

Does every point on a graph have to be exactly on a line in order to indicate a linear relationship between variables in a scientific inquiry?
A- No, they can be anywhere.
B- No, they can be anywhere.
C- Yes.
D- No, only causes and effects have a linear relationship

Answer 1

A and B are the same?

Answer 2

Oops I means to say that B- No, but they should be close.

Answer 3

In a scientific inquiry? No. Because of error in data collection, the data will usually not be perfect, and so there will almost never be a perfect line that the data points fall on.

Answer 4

I also know its not A.

Answer 5

Here's an example of what I'm talking about. There's an implied linear relationship, but the data is not exactly on the line.