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untuk a,b,c,d
a) y= x
m = 1
b) y= -2x-3
m =-2
c) dan d) kerja.an sendiri yah :-)
m = -b /a
untuk e dan f
bx + ay = ab
e)x+2y -1 = 0
1x+2y -1 =
artinya b = 1 ; a =2. maka :
m = -b /a
m = - 1/2
f) kerjakan sendiri yah :-)