Writing Parallel and Perpendicular Equations of Lines.

Front

What is the slope of two parallel lines?

Back

The slope of two parallel lines is the same.

Front

Write an equation for a line parallel to y = 2x + 1 through the point (1, 3).

Back

y = 2x + 1.

Front

What slope is parallel to m = -5/2?

Back

-5/2.

Front

What is the equation of a horizontal line?

Back

y = b, where b is a constant.

Front

What is the slope of two perpendicular lines?

Back

The slopes of two perpendicular lines are opposite reciprocals.

Front

Write an equation for a line perpendicular to y = 1/4x + 2 through the point (2, 3).

Back

y = -4x + 11.

Front

What slope is perpendicular to m = 3?

Back

-1/3.

Front

What is the equation of a vertical line?

Back

x = a, where a is a constant.

Front

Are the lines y = 2x + 3 and y = 2x - 5 parallel, perpendicular, or neither?

Back

Parallel.

Front

Are the lines y = -1/2x + 4 and y = 2x - 1 parallel, perpendicular, or neither?

Back

Perpendicular.