Parallel/Perpendicular Slopes and Perpendicular Bisectors

Front

What is the slope of a line parallel to a line with slope m?

Back

The slope of a line parallel to a line with slope m is also m.

Front

What is the slope of a line perpendicular to a line with slope m?

Back

The slope of a line perpendicular to a line with slope m is -1/m (the negative reciprocal of m).

Front

If two lines have the same slope, what can we say about them?

Back

If two lines have the same slope, they are parallel.

Front

Back

The slope of the line is 2.

Front

Back

Front

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

Back

The slopes of two perpendicular lines are negative reciprocals of each other.

Front

Back

Front

What do we call the line that bisects another line segment at a right angle?

Back

It is called the perpendicular bisector.

Front

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

Back

The slope of a line parallel to it is also 3.

Front

What is the slope of a line that is horizontal?

Back

The slope of a horizontal line is 0.