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=> Menetukan gradian(m)
m= 4x-3y+3=0
m= -a/b = -4/-3
m= 4/3
=> y-y1 = -1/m(x-x1)
y-(-7)= -1/(4/3)(x-2)
y+7 = -3/4(x-2)
y+7 = -3/4x + 3/2 (kali 8)
8y+56 = -6x+12
-6x-8y = 56-12
-6x-8y = 44 (agar nilai X positif kali kn kedua ruas dgn -1)
6x+8y = -44 ( disederhana kn. kedua ruas dibagi 2)
3x+4y = -22
Jawaban: B