Parallel Skew and Perpendicular Lines

If a line has a slope of 6 a line that is perpendicular has a slope of what?

• -1/6

• 1/6

• 6

• -6

If a line has a slope of 7/3 a line that is perpendicular has a slope of what?

• -3/7

• 3/7

• 7/3

• -7/3

The following represents slopes of two lines.  Which answer choice describes the two lines?
m = 4 and m = -1/4

• Parallel

• Perpendicular

• Neither

The following represents slopes of two lines.  Which answer choice describes the two lines?
m = -1/3 and m = -1/3

• Parallel

• Perpendicular

• Neither

Slopes of Parallel lines are ____________?

• opposites

• reciprocals

• equal

• oppostie reciprocals

Slopes of Perpendicular lines are __________?

• Opposite

• Reciprocals

• Opposite Reciprocals

• Equal

What is the slope of the line parallel to the following set of points:

(0 , 0) and (4 , 12)

• 3

• -1/3

What is the slope of the line perpendicular to the following set of points:

(0 , 0) and (4 , 12)

• 3

• -1/3

What is the slope of the line perpendicular to the following set of points:

(3 , 5) and (1 , 15)

• -5

• 1/5

What is the slope of the line parallel to the following set of points:

(3 , 5) and (1 , 15)

• -5

• 1/5