Parallel and Perpendicular Slopes

Front

What are parallel lines?

Back

Lines that have the same slope and never intersect.

Front

What are perpendicular lines?

Back

Lines that intersect at a right angle (90 degrees) and have slopes that are negative reciprocals of each other.

Front

What does 'm' represent in the slope-intercept form y=mx+b?

Back

The slope of the line.

Front

What does 'b' represent in the slope-intercept form y=mx+b?

Back

The y-intercept of the line.

Front

If two lines have the same slope, what can we say about them?

Back

They are parallel.

Front

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

Back

-1/2 (the negative reciprocal of 2).

Front

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

Back

4.

Front

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

Back

They are parallel.

Front

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

Back

They are neither.

Front

Which of the following lines is parallel to y = x/2 + 10? y = x/2 - 5, y = 2x, y = -2x - 15, None of them.

Back

y = x/2 - 5.