SOLUTION: Determine whether the lines 5x + 3y = 9 and -3x + 5y = 10 are parallel, perpendicular, or neither.

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Question 752573: Determine whether the lines 5x + 3y = 9 and -3x + 5y = 10 are parallel, perpendicular, or neither.
Answer by unlockmath(1688) About Me  (Show Source):
You can put this solution on YOUR website!
Hello,
We could set these equations 5x + 3y = 9 and -3x + 5y = 10 as y=mx+b and then can determine.
y =-5/3x+3
y =3/5x+2
We can see that these equations are perpendicular since the slope is a negative reciprocal.
Make sense?
RJ
www.math-unlock.com