SOLUTION: find the slope of a line that is parallel to and slope of a line that is perpendicular to : y=8 Thanks a Ton!!

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Question 6007: find the slope of a line that is parallel to and slope of a line that is perpendicular to : y=8
Thanks a Ton!!
Answer by rapaljer(4671) About Me  (Show Source):
You can put this solution on YOUR website!
The line y = 8 is a horizontal line, and the slope of ANY horizontal line is 0. Any line parallel to a horizontal line is going in the same direction, so it has the same slope, ZERO.

Any line perpendicular to any horizontal line must be a vertical line, and the slope of a vertical line is undefined. So the slope of any line perpendicular to y = 8 is UNDEFINED.

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