Perpendicular and Parallel Lines

Front

What is the slope of a line perpendicular to y = 2x - 7?

Back

-1/2

Front

Identify the slope of a line parallel to a line with slope 3/7.

Back

3/7

Front

Which equation represents slope-intercept form?

Back

y = 2x + 5

Front

What do you call lines that have the same slope?

Back

Parallel lines

Front

What is the relationship between the slopes of perpendicular lines?

Back

They are opposite reciprocals.

Front

If two lines are represented by the equations y = 3x + 2 and y = 3x - 3, what is their relationship?

Back

Parallel

Front

What is the slope of a line that is perpendicular to a line with a slope of 4?

Back

-1/4

Front

What is the slope of a line that is parallel to a line with a slope of -5?

Back

-5

Front

What is the general form of a linear equation?

Back

Ax + By + C = 0

Front

How do you find the slope from two points (x1, y1) and (x2, y2)?

Back

Slope (m) = (y2 - y1) / (x2 - x1)