Parallel and Perpendicular Lines

Front

What is the slope of a line that is perpendicular to the line whose equation is $ y = 4x + 1 $?

Back

Front

What is the slope of a line that is perpendicular to the line whose equation is $ y = 3x + 5 $?

Back

Front

What are parallel lines?

Back

Lines that do not intersect and have the same slope.

Front

What are perpendicular lines?

Back

Lines that intersect at a right angle (90 degrees).

Front

What is a transversal?

Back

A line that intersects two or more lines at different points.

Front

What condition makes two lines parallel when intersected by a transversal?

Back

Alternate interior angles are congruent.

Front

What is the relationship between corresponding angles when two lines are parallel?

Back

Corresponding angles are congruent.

Front

What is the relationship between same-side interior angles when two lines are parallel?

Back

Same-side interior angles are supplementary.

Front

If two lines are perpendicular, what is the product of their slopes?

Back

The product of their slopes is -1.

Front

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

Back

The slope of the parallel line is 2.