Parallel and Perpendicular Slopes

Front

What is the slope of a line parallel to the line represented by the equation y = mx + b?

Back

The slope of a line parallel to the line represented by the equation y = mx + b is m.

Front

If two lines have the same slope, what can we conclude about their relationship?

Back

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

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.

Front

How can you determine if two lines are parallel using their slopes?

Back

Two lines are parallel if their slopes are equal.

Front

What is the slope of the line represented by the equation y = 5x + 2?

Back

The slope of the line represented by the equation y = 5x + 2 is 5.

Front

If the slope of one line is 2, what is the slope of a line parallel to it?

Back

The slope of a line parallel to it is also 2.

Front

What does it mean for two lines to be perpendicular?

Back

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

Front

Given the slopes m1 = 1/2 and m2 = -2, are the lines represented by these slopes parallel, perpendicular, or neither?

Back

The lines are perpendicular because (1/2) * (-2) = -1.

Front

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

Back

The slopes of two parallel lines are equal.

Front

If a line has a slope of -3, what is the slope of a line that is perpendicular to it?

Back

The slope of a line that is perpendicular to it is 1/3.