2-28 Writing Parallel and Perpendicular lines

Front

Slopes of parallel lines are...

Back

identical.

Front

Slopes of perpendicular lines are...

Back

opposite reciprocals.

Front

Back

Front

What slope is parallel to: m = 4?

Back

4.

Front

y = -\frac{2}{3}x + 2 and y = \frac{3}{2}x + 9. These lines are...

Back

Perpendicular.

Front

Definition of parallel lines in terms of slope.

Back

Two lines are parallel if they have the same slope.

Front

Definition of perpendicular lines in terms of slope.

Back

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

Front

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

Back

2.

Front

If a line has a slope of -1/5, what is the slope of a line perpendicular to it?

Back

5.

Front

Back

4.