Unit 7 FC 7 parallel and perpendicular slope

Front

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

Back

2

Front

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

Back

-1/2

Front

True or False: Parallel lines have the same slope.

Back

True

Front

If m = 5 and m = -1/5, how do the two lines relate?

Back

Perpendicular

Front

If m = -1/3 and m = -1/3, how do the two lines relate?

Back

Parallel

Front

What is the definition of parallel lines in terms of slope?

Back

Parallel lines have the same slope.

Front

What is the definition of perpendicular lines in terms of slope?

Back

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

Front

If the slope of one line is 3, what is the slope of a line perpendicular to it?

Back

-1/3

Front

If two lines have slopes m1 and m2, what condition must be met for them to be parallel?

Back

m1 = m2

Front

If two lines have slopes m1 and m2, what condition must be met for them to be perpendicular?

Back

m1 * m2 = -1