已知点A(0,-3)和B(0,1)两点,求线段AB中点的坐标。
A: (5,7)
B: (2,4)
C: (0,-1)
D: (3,4)
A: (5,7)
B: (2,4)
C: (0,-1)
D: (3,4)
举一反三
- 已知点A(5,-3)和B(5,9)两点,求线段AB中点的坐标。 A: (5,3) B: (0,-5) C: (-3,0) D: (4,6)
- 已知:M是线段AB的中点,A(2,-4),B(0,-2),则M点坐标为( ) A: (1,-1) B: (1,-2) C: (2,-6) D: (1,-3)
- 【单选题】Which of the following matrices does not have the same determinant of matrix B: [1, 3, 0, 2; -2, -5, 7, 4; 3, 5, 2, 1; -1, 0, -9,-5] A. [1, 3, 0, 2; -2, -5, 7, 4; 0, 0, 0, 0; -1, 0, -9, -5] B. [1, 3, 0, 2; -2, -5, 7, 4; 1, 0, 9, 5; -1, 0, -9, -5] C. [1, 3, 0, 2; -2, -5, 7, 4; 3, 5, 2, 1; -3, -5, -2, -1] D. [1, 3, 0, 2; -2, -5, 7, 4; 0, 0, 0, 1; -1, 0, -9, -5]
- 已知点A(0,1)和点B(0,3),则线段AB的长为( )() A: 0 B: 3 C: 1 D: 2
- 已知点P(-2,4),和Q(6,-6),则线段PQ的中点M的坐标为 A: (2,-1) B: (-1,2) C: (4,-5) D: (3,-3)