Parallel and Perpendicular Lines

Front

What is the slope of a line that is perpendicular to the line represented by the equation y = 2x - 7?

Back

The slope of the perpendicular line is -1/2.

Front

Write the slope-intercept form of the equation through the points (-1, -3) and (1, -5).

Back

The slope-intercept form is y = -1x - 4.

Front

What is the slope of the line represented by the equation -8x - 4y = -12?

Back

The slope of the line is -2.

Front

What do two parallel lines have in common regarding their slopes?

Back

Two lines that are parallel will have the same slope.

Front

What is the slope-intercept form of a line?

Back

The slope-intercept form of a line is given by the equation y = mx + b, where m is the slope and b is the y-intercept.

Front

If the slope of a line is 3, what is the slope of a line that is perpendicular to it?

Back

The slope of the perpendicular line is -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 is the slope of a horizontal line?

Back

The slope of a horizontal line is 0.

Front

What is the slope of a vertical line?

Back

The slope of a vertical line is undefined.

Front

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

Back

The slope of a parallel line is also -4.