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= -2-5/-1-(-4)
= -7/ -1+4
= -7/3
y1 = -2 ,
x2 = -4 ,
x1 = -1
y2-y1 per x2-x1
5 - (-2) per -4 - (-1)
5+2 per -4 + 1
7 per -3
jawabannya yg B.
maaf kalo salah, semoga membantu...