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a) M is the midpoint
($\frac{8 + 1}{2}$), $\frac{10 + 1}{2}$
M (4.5, 5.5)
b) Co -ordinate of B
(4x - 5y = -1)2
(5x - 2y = 20)5
8x - 10y = -2
25x - 10y = 100
17x = - 102; x = 6
4(6) - 5y = -1
24 - 5y = -1
-5y = -25;y = 5, B (6, 5)
Co -ordinate of D
4.5 = $\frac{c + 6}{2}$; 9 = C + 6
c = 3
5.5 = $\frac{d + 5}{2}$
11 = d + 5;
d = 6
D(3, 6)
johnmulu answered the question on March 2, 2017 at 12:07
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