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Attempt following question by selecting a choice to answer. D
The midpoint of AB is ( 7,  1)and one of the end point is A( 1, 1). Find the coordinates of the other end point. B DA. D(13,  3) B. D(13, 3) C. D( 13,  3) D. D( 13, 3)
D
C
Step 1: Let x, y be the coordinates of the midpoint of the line segment.
Step 2: If A (x_{1}, y_{1}) and B(x_{2}, y_{2}) are points in a coordinate plane then the coordinates of the midpoint of AB¯ are (x1 +x22, y1 +y22)
Step 3:  1+x2 =  7, 1+y2 =  1
Step 4:  1 + x =  14, 1 + y =  2
Step 5: x =  13, y =  3
Step 6: Hence the coordinates of the other end point are ( 13,  3).

