Problem

A line has a slope of −85.
(a) What is the slope of the line parallel to it?
(b) What is the slope of the line perpendicular to it?

Answer

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Answer

Final Answer: \n(a) The slope of the line parallel to the given line is −1.6.\n(b) The slope of the line perpendicular to the given line is 0.625.

Steps

Step 1 ：The slope of a line parallel to a given line is equal to the slope of the given line. Therefore, the slope of the line parallel to the given line is −85 or −1.6.

Step 2 ：The slope of a line perpendicular to a given line is the negative reciprocal of the slope of the given line. Therefore, the slope of the line perpendicular to the given line is −1−85 or 0.625.

Step 3 ：Final Answer: \n(a) The slope of the line parallel to the given line is −1.6.\n(b) The slope of the line perpendicular to the given line is 0.625.

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