Answer:
If the product of the reciprocals of the slopes of two lines is not −1, then the lines are not perpendicular.
Explanation:
Given statement: If two lines are perpendicular, then the product of the reciprocals of the slopes of the two lines is −1.
To find: the statement that is logically equivalent to this conditional statement.
Solution:
Statement equivalent to '' If two lines are perpendicular, then the product of the reciprocals of the slopes of the two lines is −1 '' is if the product of the reciprocals of the slopes of two lines is not −1, then the lines are not perpendicular.