Parallel & Perpendicular Lines Flashcard

Front

What is the equation of a line that is perpendicular to the line with slope 3 and passes through the point (6,3)?

Back

Front

Back

The slope of the parallel line is 2.

Front

What are the slopes of parallel lines?

Back

The slopes of parallel lines are the same.

Front

What are the slopes of perpendicular lines?

Back

The slopes of perpendicular lines are opposite reciprocals.

Front

If a line has a slope of -2, what is the slope of a line that is perpendicular to it?

Back

The slope of the perpendicular line is \frac{1}{2}.

Front

Back

Front

If two lines have slopes of 4 and -\frac{1}{4}, are they parallel, perpendicular, or neither?

Back

They are perpendicular.

Front

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

Back

The slopes are equal.

Front

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

Back

The product of their slopes is -1.

Front

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

Back

The slope of the perpendicular line is 0 (horizontal line).