Points Q (4,3) and P (6,9) are given. What is the arithmetic mean of the coordinates of points Q and P.

At the very beginning, it should be noted that in order to determine what the arithmetic mean of the coordinates of points Q and P is equal to, it is necessary to add their respective coordinates with each other and divide the resulting sum by 2. Thus, we will determine the average x coordinate and the average y coordinate for the points indicated earlier.

Then we get the following:

Average x coordinate:

(4 + 6): 2 = 10: 2 = 5.

Average y-coordinate:

(3 + 9): 2 = 12: 2 = 6.

Answer: the arithmetic mean is (5; 6).