In order to calculate the coordinates of the middle of the AB segment, you should use the formula.
At the same time, for clarity, we denote the point of the middle of the letter D.
Now we will learn the coordinates of the point d using the formula for calculating the coordinates of the middle of the segment with the ends a (x1; y1) and b (x2; y2).
x3 = ((x1 + x2): 2).
y3 = ((y1 + y2): 2).
Next, calculate the coordinates of the point D (x3; y3).
To do this, we will substitute in the above formulas the corresponding coordinates of the points A and B.
By condition, the dates of A (-1; 3) and b (5; 1) are given.
x3 = ((-1 + 5): 2) = 4: 2 = 2.
y3 = ((3 + 1): 2) = 4: 2 = 2.
Now write the coordinates of the point D (2; 2).
Answer: D (2; 2).
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