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maka garis yg sejajar adalah yang punya gradien yang sama yaitu garis d
=-3-(-1)/0-4
=-3+1/-4
=-2/-4
=1/2
syarat sejajar =m1=m2=1/2
a. m = -1
b. m= 1
c. m= -1/2
d. x-2y=5
-2y = -x+5
y= 1/2 x + 5/2. ---> m= 1/2
jd jawaban . d