Ответ:
(x, y) = (-1-3, -3-(-7)) = (-4, 4)
K1(x, y) = (3-4, -7+4) = (-1, -3)
D1(x, y) = (5-4, 1+4) = (1, 5)
M(x, y) = ((5+3)/2, (1-7)/2) = (4, -3)
k = (5-(-3))/(1-4) = -8/3
b = 1 - k*5 = 41/3
y = (-8/3)*0 + 41/3 = 41/3
x = (0 - 41/3) / (-8/3) = 41/24
Таким чином, прообразом точки С1 є точка C(41/24, 41/3).
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Ответ:
(x, y) = (-1-3, -3-(-7)) = (-4, 4)
K1(x, y) = (3-4, -7+4) = (-1, -3)
D1(x, y) = (5-4, 1+4) = (1, 5)
M(x, y) = ((5+3)/2, (1-7)/2) = (4, -3)
k = (5-(-3))/(1-4) = -8/3
b = 1 - k*5 = 41/3
y = (-8/3)*0 + 41/3 = 41/3
x = (0 - 41/3) / (-8/3) = 41/24
Таким чином, прообразом точки С1 є точка C(41/24, 41/3).