Parallel, Perpendicular, or Neither Assessment

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.

Front

What is the slope of a line in the equation y = mx + b?

Back

The slope (m) represents the steepness of the line and the direction it goes.

Front

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

Back

The slope of the perpendicular line is -1/3.

Front

How can you determine if two lines are parallel from their equations?

Back

If the coefficients of x in both equations are the same, the lines are parallel.

Front

What is the slope of the line represented by the equation 2x + 3y = 6?

Back

The slope is -2/3.

Front

If two lines have slopes of 4 and -1/4, what can you say about their relationship?

Back

The lines are perpendicular because the product of their slopes is -1.

Front

What is the relationship between the slopes of parallel lines?

Back

The slopes of parallel lines are equal.

Front

What is the slope of a line that is horizontal?

Back

The slope of a horizontal line is 0.

Front

What is the slope of a line that is vertical?

Back

The slope of a vertical line is undefined.