Final Answer:
The three points (6,4), (12,6), and (16,-6) do not form the vertices of a right triangle.
Thus option d is correct.
Step-by-step explanation:
In order to determine if these points form a right triangle, we need to examine the slopes of the lines formed by connecting these points. For a right triangle, the slopes of two perpendicular sides should satisfy the condition: the product of their slopes should be -1.
Calculating the slopes of the line segments formed by these points:
1. Slope between (6,4) and (12,6):
Slope

2. Slope between (6,4) and (16,-6):
Slope

3. Slope between (12,6) and (16,-6):
Slope

The product of
and
is
, which is not equal to -1. Hence, the lines formed by connecting these points do not have perpendicular slopes, indicating that these points do not form the vertices of a right triangle.
Therefore, the geometric property being determined in this statement is the presence of a right triangle, and in this case, the points (6,4), (12,6), and (16,-6) do not satisfy the conditions to form a right triangle based on the slopes of the lines formed by connecting them.
Therefore option d is correct.