I would saybar chart because it is a set amount of data
For this case we have that by definition, the slope of a line is given by:

Where:
and
are two points through which the line passes.
According to the image we have:

Substituting we have:

Thus, the slope of the line is:

Answer:

Answer:
Step-by-step explanation:
∠2, ∠3, and ∠4
Answer: the third answer (C)
Step-by-step explanation:
Given two points
, the slope of the line connecting them is defined as

In your case, the points are

Plugging these values in the slope formula gives
