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Verified answer
M = ( y2 - y1 ) / ( x2 - X1 )m = ( - 13 + 1 ) / ( 2 - 8 )
m = - 12 / - 6
m = 2
Titik A =( 8,-1 ) ---- ( x1,y1 )
Titik B = { 2,-13 } --- ( x2,y2 )
m= (y2-y1)/(x2-x1)
= (-13+1)/(2-8)
= -12/-6
= 2
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