Equations of Perpendicular Lines

Front

What is the slope of a line perpendicular to a line with a slope of -3?

Back

Front

If two lines are perpendicular, what is the relationship between their slopes?

Back

If two lines are perpendicular, their slopes are opposite reciprocals of each other.

Front

Back

Front

What is the slope of a line that is perpendicular to a line with a slope of 2?

Back

Front

If the slope of a line is 0, what can be said about the line?

Back

If the slope of a line is 0, the line is horizontal.

Front

What is the slope of a line that is perpendicular to a vertical line?

Back

The slope of a line that is perpendicular to a vertical line is undefined.

Front

Back

Front

If two lines are parallel, what can be said about their slopes?

Back

If two lines are parallel, their slopes are the same.

Front

Back

Front

Back