SOLUTION: decide whether lines p1 and p2 are perpendicular: line p1: x + 8y= -4 line p2: 4x - 2y = 10

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Question 57932This question is from textbook geometry reasoning
: decide whether lines p1 and p2 are perpendicular:
line p1: x + 8y= -4
line p2: 4x - 2y = 10 This question is from textbook geometry reasoning

Answer by checkley71(8403) About Me  (Show Source):
You can put this solution on YOUR website!
X+8Y=-4
8Y=-X-4
Y=-X/8-4 THIS LINE HAS A SLOPE OF -1/8
4X-2Y=10
-2Y=-4X+10
Y=2X-5 THIS LINE HAS A SLOPE OF 2
THE LINES ARE NOT PERPENDICULAR
TO BE PERPENDICULAR TO LINE 1 THE SLOPE HAS TO BE +8
TO BE PERPENDICULAR TO LINE 2 THE SLOPE HAS TO BE -1/2