Parallel and Perpendicular Slopes

Front

What are the slopes of parallel lines?

Back

Identical.

Front

What is the slope of a line perpendicular to the line represented by the equation y = 2x + 4?

Back

-\frac{1}{2}

Front

If two lines have slopes m = -\frac{1}{3} and m = -\frac{1}{3}, what relationship do they have?

Back

Parallel.

Front

What is the slope of a line perpendicular to a line with slope -\frac{6}{5}?

Back

\frac{5}{6}.

Front

What is the slope of a line parallel to the line represented by the equation y = \frac{1}{2}x + 4?

Back

\frac{1}{2}.

Front

Define the slope of a line.

Back

The slope of a line is a measure of its steepness, calculated as the rise over run between two points on the line.

Front

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

Back

The slopes are opposite reciprocals.

Front

If the slope of one line is 3, what is the slope of a line perpendicular to it?

Back

-\frac{1}{3}.

Front

What does it mean for two lines to be parallel?

Back

Two lines are parallel if they have the same slope and will never intersect.

Front

What does it mean for two lines to be perpendicular?

Back

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