Wyznacz wspołrzędne punktu A, jeśli
a) B(3,0), AB = [-1,1]
b) B(-1,-3), AB=[-2,-3]
a) B = (3;0) A = (x;y) , AB = [-1;1]
zatem
3 -x = -1 oraz 0 - y = 1
x = 4 oraz y = -1
Odp. A = (4; -1)
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b)
B = (-1; -3) , A = (x;y) , AB = [-2 ; -3]
-1 -x = -2 oraz -3 - y = -3
x = 1 oraz y = 0
Odp. A = (1 ; 0 )
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a) B = (3;0) A = (x;y) , AB = [-1;1]
zatem
3 -x = -1 oraz 0 - y = 1
x = 4 oraz y = -1
Odp. A = (4; -1)
-------------------
b)
B = (-1; -3) , A = (x;y) , AB = [-2 ; -3]
zatem
-1 -x = -2 oraz -3 - y = -3
x = 1 oraz y = 0
Odp. A = (1 ; 0 )
====================