Parallel and Perpendicular Slope/Intercept Form

Front

What is the slope of parallel lines?

Back

The slopes of parallel lines are identical.

Front

What is the relationship between the slopes of perpendicular lines?

Back

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

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 -1/2.

Front

How can you determine if two lines are parallel?

Back

Two lines are parallel if they have the same slope.

Front

How can you determine if two lines are perpendicular?

Back

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

Front

What is the slope of a line parallel to y = 3x + 5?

Back

The slope of a line parallel to y = 3x + 5 is 3.

Front

What is the slope of a line perpendicular to y = -4x + 1?

Back

The slope of a line perpendicular to y = -4x + 1 is 1/4.

Front

Given the equations y = -1/3x - 5 and y = 1/3x + 2, are they parallel, perpendicular, or neither?

Back

They are neither parallel nor perpendicular.

Front

What is the slope of the line represented by the equation y = 2x - 7?

Back

The slope of the line is 2.

Front

If a line has a slope of 3/4, what is the slope of a line that is parallel to it?

Back

The slope of a line parallel to it is also 3/4.