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Kelas : VIII SMP
Bab : Persamaan Garis Lurus
Pembahasan :
C(7,1) dan m = 1/5
y - y1 = m(x - x1)
y - 1 = 1/5(x - 7)
5y - 5 = x - 7
x - 5y - 2 = 0
——————————————
C(3,0) dan m = -1/2
y - y1 = m(x - x1)
y - 0 = -1/2(x - 3)
y = -1/2x + 3/2
2y = -x + 3
x + 2y - 3 = 0
——————————————
E(-2 , -3) dan m = -1
Y - Y1 = M(X - X1)
y + 3 = -1(x + 2)
y + 3 = -x - 2
x + y + 5 = 0