Parallel and Perpendicular Lines

Front

What are the slopes of perpendicular lines?

Back

Opposite reciprocals.

Front

What does 'b' represent in the equation y=mx+b?

Back

y-intercept.

Front

If the slope of a line is 2, what is the slope of a line perpendicular to it?

Back

-1/2.

Front

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

Back

3.

Front

What is the relationship between the slopes of parallel lines?

Back

They are equal.

Front

Determine if the lines represented by the equations -6x + y = 2 and 6x + y = 2 are parallel, perpendicular, or neither.

Back

Neither.

Front

Determine if the lines represented by the equations y = -2/3x + 2 and y = 3/2x + 9 are parallel, perpendicular, or neither.

Back

Perpendicular.

Front

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

Back

-1/2.

Front

What is the slope of a line parallel to the line whose equation is y = -4x + 1?

Back

-4.

Front

If two lines have slopes m1 and m2, what condition must be met for them to be perpendicular?

Back

m1 * m2 = -1.