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Saya bantu jawab ya.MATEMATIKA
Koordinat Kartesius
Misalnya koordinat K, I, T, A, adalah (x2, y2) dan koordinat N (acuan) adalah (x1, y1).
Maka
xt (nilai absis K,I,T, dan A terhadap N) = x2 - x1
yt (nilai ordinat K,I,T, dan A terhadap N) = y2 - y1
1) Titik K terhadap N
K (x2,y2) = K (-3,-5)
N (x1,y1) = N (5,6)
xt = -3 - 5 = -8
yt = -5 - 6 = -11
(xt, yt) = (-8,-11)
2) Titik I terhadap N
I (x2,y2) = I (0, -7)
N (x1, y1) = N (5,6)
xt = 0 - 5 = -5
yt = -7 - 6 = -13
(xt, yt) = (-5,-13)
3) Titik T terhadap N
T (x2,y2) = T (5,-4)
N (x1,y1) = N (5,6)
xt = 5 - 5 = 0
yt = -4 - 6 = 10
(xt,yt) = (0,10)
4) Titik A terhadap N
A (x2, y2) = A (-3,7)
N (x1,y1) = N (5,6)
xt = -3 - 5 = -8
yt = 7 - 6 = 1
(xt, yt) = (-8,1)
Semoga bisa membantu!