Parallel and Perpendicular Slopes

Front

What are the slopes of parallel lines?

Back

Identical.

Front

Find the slope of a line parallel to the line y = ½x + 4.

Back

1/2

Front

What is the slope of a line perpendicular to a line with slope -6/5?

Back

5/6

Front

If m = 4 and m = -1/4, how do the two lines relate?

Back

Perpendicular.

Front

If m = 7 and m = -7, how do the two lines relate?

Back

Neither.

Front

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

Back

The slopes are opposite reciprocals.

Front

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

Back

-1/3.

Front

If two lines have slopes of 2 and 2, how do they relate?

Back

Parallel.

Front

What is the slope of a line parallel to a line with slope -1?

Back

-1.

Front

If a line has a slope of 0, what type of line is it?

Back

Horizontal.