Make-Up Parallel & Perpendicular Lines Post Test

Front

What are parallel lines?

Back

Parallel lines are lines in a plane that never meet. They have the same slope but different y-intercepts.

Front

What are perpendicular lines?

Back

Perpendicular lines are lines that intersect at a right angle (90 degrees). The slopes of perpendicular lines are negative reciprocals of each other.

Front

What is the slope of a line in the equation y = mx + b?

Back

In the equation y = mx + b, 'm' represents the slope of the line.

Front

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

Back

If two lines have the same slope, they are parallel.

Front

If the slopes of two lines are negative reciprocals, what can we say about them?

Back

If the slopes of two lines are negative reciprocals, they are perpendicular.

Front

What is the slope of the line represented by the equation 6x + y = -2?

Back

To find the slope, rewrite the equation in slope-intercept form (y = mx + b). The slope is -6.

Front

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

Back

The slope of the line y = 2x - 7 is 2.

Front

How do you find the equation of a line parallel to a given line?

Back

To find the equation of a line parallel to a given line, use the same slope as the given line and a different y-intercept.

Front

What is the equation of a line parallel to y = -6x + 12 that passes through the point (1, 2)?

Back

The equation is y = -6x + 8.

Front

What is the y-intercept of the line y = -rac{3}{2}x + 9?

Back

The y-intercept is 9.