Types of Lines

Front

What is a perpendicular line?

Back

A line that intersects another line at a right angle (90 degrees).

Front

What is a parallel line?

Back

Lines that run in the same direction and never meet, no matter how far they are extended.

Front

Identify the relationship: Line a is perpendicular to Line b. What does this mean?

Back

Line a intersects Line b at a right angle.

Front

If Line c is parallel to Line d, what can we say about their slopes?

Back

The slopes of Line c and Line d are equal.

Front

What is the symbol used to denote perpendicular lines?

Back

The symbol '⊥' is used to denote perpendicular lines.

Front

What is the symbol used to denote parallel lines?

Back

The symbol '||' is used to denote parallel lines.

Front

If two lines are perpendicular, what is the sum of their angles at the intersection?

Back

The sum of their angles at the intersection is 180 degrees.

Front

In a coordinate plane, what is the slope of a line that is perpendicular to a line with a slope of 2?

Back

The slope of the perpendicular line is -1/2.

Front

What does it mean for two lines to intersect?

Back

It means they cross each other at a point.

Front

If Line e is parallel to Line f, and Line g intersects both, what can we say about the angles formed?

Back

The corresponding angles formed are equal.