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Titik A = (5a,8)
Titik B = (3a, -4)
jawab : m = y2 - y1
x2 -x1
-2 = -4 - 8
3a - 5a
-2 = -12
- 2a
-12 = -2 x -2a
-12 = 4a
-12 = a
4
-3 = a
Titik A (5a,8) = (5(-3),8) = ( -15,8)
Titik B (3a,-4)= (3(-3),-4)= ( -9,-4)