Parallel and Perpendicular Slopes

Front

What is the slope of a line parallel to y = 2x + 4?

Back

2

Front

Are the numbers 2 and -1/2 negative reciprocals of each other?

Back

True

Front

Which two lines are parallel: Line A (y = 3x + 1) and Line B (y = 3x + 2) or Line C (y = 2x + 1)?

Back

Line A and Line B

Front

What can be said about the slopes of the lines y = 3x + 2 and y = 3x - 3?

Back

They are parallel.

Front

What are the slopes of perpendicular lines?

Back

Opposite reciprocals.

Front

If the slope of one line is 4, what is the slope of a line perpendicular to it?

Back

-1/4

Front

What is the slope of a line parallel to y = -5x + 1?

Back

-5

Front

If two lines have the same slope, what can be said about them?

Back

They are parallel.

Front

What is the relationship between the slopes of two lines that intersect at a right angle?

Back

They are negative reciprocals.

Front

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

Back

A horizontal line.