Parallel and Perpindicular Lines

Front

What are parallel lines?

Back

Lines that do not intersect.

Front

Two lines that are parallel will have _________ slopes.

Back

the same, equal, same.

Front

Are the two linear equations parallel, perpendicular, or neither?

Back

Parallel.

Front

What is the slope of a line parallel to y = 2x + 3?

Back

2.

Front

What is the slope of a line perpendicular to y = -1/4x + 5?

Back

4.

Front

If two lines have slopes m1 and m2, when are they parallel?

Back

m1 = m2.

Front

If two lines have slopes m1 and m2, when are they perpendicular?

Back

m1 * m2 = -1.

Front

What is the equation of a line parallel to y = 3x + 1 that passes through (2, 5)?

Back

y = 3x - 1.

Front

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

Back

y = 1/2x + 3/2.

Front

What do you call lines that intersect at a right angle?

Back

Perpendicular lines.