SOLUTION: Is the line y=2/3x-11 perpendicular to the line y=-3/26x-11 ? I say no because the slopes are not the same but my college algebra book disagrees with me.

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Question 976125: Is the line y=2/3x-11 perpendicular to the line y=-3/26x-11 ? I say no because the slopes are not the same but my college algebra book disagrees with me.
Found 2 solutions by josgarithmetic, MathTherapy:
Answer by josgarithmetic(39630) About Me  (Show Source):
You can put this solution on YOUR website!
The lines are not perpendicular.

%282%2F3%29%28-3%2F26%29=-1 ?
No.

Answer by MathTherapy(10556) About Me  (Show Source):
You can put this solution on YOUR website!

Is the line y=2/3x-11 perpendicular to the line y=-3/26x-11 ? I say no because the slopes are not the same but my college algebra book disagrees with me.
Are you sure the 2nd equation is: y+=+-+%283%2F26%29x+-+11, and not y+=+-+%283%2F2%29x+-+11? If the latter, then the book is correct!!