Parallel and Perpendicular Lines Flashcard

Front

What is the slope of a line parallel to another line?

Back

The slope of a line parallel to another line is identical.

Front

What is the slope of a line perpendicular to another line?

Back

The slope of a line perpendicular to another line is the opposite reciprocal of the original line's slope.

Front

Write the equation of a line parallel to y = 2x + 3 that passes through the point (1, 5).

Back

y = 2x + 3.

Front

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

Back

The slope of a line perpendicular to m is -1/3.

Front

What is the general form of the equation of a line?

Back

The general form of the equation of a line is Ax + By + C = 0.

Front

How do you determine if two lines are parallel?

Back

Two lines are parallel if they have the same slope.

Front

How do you determine if two lines are perpendicular?

Back

Two lines are perpendicular if the product of their slopes is -1.

Front

Write the equation of a line that is perpendicular to y = -1/2x + 4 and passes through the point (2, 3).

Back

y = 2x - 1.

Front

What is the slope-intercept form of a line?

Back

The slope-intercept form of a line is y = mx + b, where m is the slope and b is the y-intercept.

Front

If a line has a slope of 0, what type of line is it?

Back

A line with a slope of 0 is a horizontal line.