Parallel & Perpendicular Lines

Front

What is the slope of a line that is perpendicular to a line with slope m = 3?

Back

-1/3

Front

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

Back

2

Front

If two lines are both perpendicular to the same line, what can we say about those two lines?

Back

They are parallel to each other.

Front

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

Back

-1/2

Front

What is the equation of a line parallel to y = -4x + 6 that passes through the point (2, -1)?

Back

y = -4x + 7

Front

Define parallel lines in terms of slope.

Back

Parallel lines have the same slope.

Front

Define perpendicular lines in terms of slope.

Back

Perpendicular lines have slopes that are negative reciprocals of each other.

Front

What is the negative reciprocal of 2?

Back

-1/2

Front

What is the negative reciprocal of -3?

Back

1/3

Front

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

Back

1/4