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the two lines y=2/5x+9 and y= -2/5x-9 are:
a) parallel
b) perpendicular
c)neither
![The Two Lines Y25x9 And Y 25x9 Are A Parallel B Perpendicular Cneither class=](https://us-static.z-dn.net/files/dd4/b72d40c79d9fb4877c655940b7bf76a2.png)