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6-14.

Given the two points and , complete parts (a) through (c) below. Homework Help ✎

  1. Find the slope of the line that passes through these two points.

    Remember that the slope 

  2. Find the slope of the line perpendicular to the line that passes through these two points.

    The slopes of perpendicular lines are opposite reciprocals of each other.

    Example: lines with slopes of  and 

    Remember: the product of opposite reciprocals is .

    The slope is .

    Describe the relationship between the slopes of perpendicular lines.

    See part (b).