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-4/-5
4/5
persamaan garis
4/5 = y-3/x-0
4x-0 = 5y-15
4x-5y+15 = 0
4x-5y + 13 = 0
-5y=-4x
y=4/5
karena sejajar jadi m1=m2 = 4/5
y-y1 = m2 (x-x1)
y-3 = 4/5 (x-0)
y-3 =4/5x dikali 5
5y-15=4x
4x-5y+15=0