Parallel and Perpendicular lines

Front

What is the slope of a line parallel to y = 3/2x + 3?

Back

The slope is 3/2.

Front

What is the slope of a line perpendicular to y = -6x + 2?

Back

The slope is 1/6.

Front

What do parallel lines have in common?

Back

Parallel lines have the same slope.

Front

What do perpendicular lines have in common?

Back

Perpendicular lines have slopes that are negative reciprocals.

Front

If two lines have slopes of 2 and -1/2, are they parallel, perpendicular, or neither?

Back

They are perpendicular.

Front

Which equation represents a line parallel to y = -7x + 2?

Back

y = -7x - 1.

Front

Which equation represents a line perpendicular to y = 3/2x + 3?

Back

y = -2/3x + b (where b can be any value).

Front

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

Back

The slopes are equal.

Front

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

Back

The product of their slopes is -1.

Front

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

Back

The slope is -1/4.