To find the midpoint of AB, we average the x-coordinates and the y-coordinates of A and B separately.
The x-coordinate of A is 7 and the x-coordinate of the midpoint is 2. To find the x-coordinate of B, we can set up the equation:
(7 + x-coordinate of B) / 2 = 2
Multiplying both sides by 2 gives:
7 + x-coordinate of B = 4
Subtracting 7 from both sides gives:
x-coordinate of B = -3
The y-coordinate of A is 2 and the y-coordinate of the midpoint is 4. To find the y-coordinate of B, we can set up the equation:
(2 + y-coordinate of B) / 2 = 4
Multiplying both sides by 2 gives:
2 + y-coordinate of B = 8
Subtracting 2 from both sides gives:
y-coordinate of B = 6
Therefore, point B is at (-3, 6).
The correct answer is C. (-3, 6).
The midpoint of AB is (2, 4) Point A is at (7, 2) where is point B??
A. (4,2)
B. (5,2)
C. (-3,6)
D. (6,-3)
1 answer