Final answer:
The slope of the line passing through the given points (1, 3) and (2, 3) is 0.
Step-by-step explanation:
The slope of a line can be calculated using the formula:
m = (Y2 - Y1) / (X2 - X1)
Where (X1, Y1) and (X2, Y2) are the coordinates of two points on the line.
For the given points (1, 3) and (2, 3), we can substitute the values into the formula as follows:
m = (3 - 3) / (2 - 1) = (0) / (1) = 0
Therefore, the slope of the line passing through these two points is 0.