..à reta AB.
A=(2,1)
B=(0,4)
m=4+1/0-2
m=-5/2
(y-4)=-5/2(x-0)
2(y-4)=-5x
2x-8=-5x
5x+2y-8=0
a reta paralela tem m=2/5
(y-8)=2/5(x+6)
5(y-8)=2x+12
5y-40=2x+12
2x-5y+52=0,é a reta
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Verified answer
A=(2,1)
B=(0,4)
m=4+1/0-2
m=-5/2
(y-4)=-5/2(x-0)
2(y-4)=-5x
2x-8=-5x
5x+2y-8=0
a reta paralela tem m=2/5
(y-8)=2/5(x+6)
5(y-8)=2x+12
5y-40=2x+12
2x-5y+52=0,é a reta