SOLUTION: Solve problems for given system: 2x+By=4 -3x+8y=2 Solve for B IF THE LINES ARE PERPANDICULAR

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Question 903258: Solve problems for given system:
2x+By=4
-3x+8y=2
Solve for B IF THE LINES ARE PERPANDICULAR
Answer by josgarithmetic(39630) About Me  (Show Source):
You can put this solution on YOUR website!
Slopes of those are -2/B and 3/8.
If their lines are perpendicular, then expect %28-2%2FB%29%283%2F8%29=-1
%282%2FB%29%283%2F8%29=1
B%2A8%2F%282%2A3%29=1
B=6%2F8
highlight%28B=3%2F4%29