Parallel and Perpendicular Lines

Front

What is the slope of a line that is perpendicular to a line with a slope of m = 5/8?

Back

-8/5

Front

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

Back

2

Front

Are the lines y = -2/3x + 2 and y = 3/2x + 9 parallel, perpendicular, or neither?

Back

Perpendicular

Front

Are the lines y = 6x + 2 and y = -6x + 2 parallel, perpendicular, or neither?

Back

Neither

Front

Write an equation for the line that is parallel to y = 3/5x - 4 and contains the point (5, 1).

Back

y = 3/5x - 2

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 3/4?

Back

-4/3

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