A line with a slope of 5 is $$\underline{\quad}$$ to a line ...

Question Analysis
This question tests the understanding of the relationship between the slopes of perpendicular lines.

Key Concept Explanation
Perpendicular lines intersect at a right angle (90 degrees), and the product of their slopes is -1: . If the slope of one line is 5, the slope of a line perpendicular to it will be the negative reciprocal, which is -

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