dla jakiej wartosci parametru m podana prosta jest rownolegla do prostej 4x+3y+7=0?
b) (2m+1)x-y=0
c) (m-1/2)x -1/2y=0
e)x+my+9=0
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a1=a2
3y=-4x-7|:3
y=4/3x-7/3
2m+1=4/3
2m=4/3-1
2m=1/3|:2
m=1/6
c) m-1/2=4/3
m=4/3+1/2
m=11/6
e) y= -x/m - 9/m
-1/m= 4/3
4m=-3|4
m=-3/4