Parallel and Perpendicular Lines

Front

What are the characteristics of perpendicular lines in terms of their slopes?

Back

Perpendicular lines have slopes that are opposite reciprocals of each other.

Front

What are the characteristics of parallel lines in terms of their slopes?

Back

Parallel lines have the same slope.

Front

If a line has a slope of -3/4, what is the slope of a line parallel to it?

Back

The slope of a line parallel to it is -3/4.

Front

If a line has a slope of 1/5, what is the slope of a line perpendicular to it?

Back

The slope of a line perpendicular to it is -5.

Front

What is the slope of the line represented by the equation y = -2/3x + 2?

Back

The slope of the line is -2/3.

Front

What is the slope of the line represented by the equation y = 3/2x + 9?

Back

The slope of the line is 3/2.

Front

How can you determine if two lines are perpendicular based on their slopes?

Back

Two lines are perpendicular if the product of their slopes is -1.

Front

What is the relationship between the slopes of two lines that are parallel?

Back

The slopes of two parallel lines are equal.

Front

If two lines have slopes of 2 and -1/2, are they parallel, perpendicular, or neither?

Back

They are perpendicular because the product of their slopes is -1.

Front

What is the slope of a line that is perpendicular to a line with a slope of 4?

Back

The slope of a line perpendicular to it is -1/4.