Determine slope of lines parallel and perpendicular

Front

What is the slope of a line that is parallel to another line with a slope of 3?

Back

The slope of a line that is parallel to another line is the same. Therefore, the slope is 3.

Front

What is the slope of a line that is perpendicular to another line with a slope of 2?

Back

The slope of a line that is perpendicular to another line is the negative reciprocal of the original slope. Therefore, the slope is -1/2.

Front

Define slope in the context of a linear equation.

Back

Slope is a measure of the steepness of a line, represented as the ratio of the rise (change in y) over the run (change in x).

Front

What is the slope of a vertical line?

Back

The slope of a vertical line is undefined.

Front

What is the slope of a horizontal line?

Back

The slope of a horizontal line is 0.

Front

If a line has a slope of -4, what is the slope of a line parallel to it?

Back

The slope of a line parallel to it is also -4.

Front

If a line has a slope of 1/3, what is the slope of a line perpendicular to it?

Back

The slope of a line perpendicular to it is -3 (the negative reciprocal of 1/3).

Front

How do you find the slope between two points (x1, y1) and (x2, y2)?

Back

The slope (m) is calculated using the formula m = (y2 - y1) / (x2 - x1).

Front

What does it mean for two lines to be parallel?

Back

Two lines are parallel if they have the same slope and will never intersect.

Front

What does it mean for two lines to be perpendicular?

Back

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