Parallel and Perpendicular Equations

Front

Slopes of perpendicular lines are...

Back

opposite reciprocals.

Front

Are these lines perpendicular? y = (1/2)x + 2, y = -2x + 13

Back

YES

Front

What is the slope of a line parallel to the line whose equation is: -2x + y = -7?

Back

2

Front

Slopes of parallel lines are...

Back

the same.

Front

Are these lines parallel? y = (-1/2)x + 1, y = (1/2)x - 5

Back

NO

Front

What is the slope of the line represented by the equation y = 3x + 4?

Back

3

Front

If two lines have slopes m1 and m2, and m1 * m2 = -1, what can be said about the lines?

Back

They are perpendicular.

Front

What is the slope of a line parallel to the line whose equation is: 4x - 2y = 8?

Back

2

Front

If the slope of one line is 5, what is the slope of a line that is perpendicular to it?

Back

-1/5

Front

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

Back

Ax + By + C = 0, where A, B, and C are constants.