Quiz on Parallel and Perpendicular Lines

Given the equations y = 0.5x + 1 and y = -2x - 3, are the lines parallel or perpendicular?

• Intersecting

• Parallel

• Perpendicular

• Coincident

Given the equations y = 0.25x + 2 and y = -4x + 8, are the lines parallel or perpendicular?

• Parallel

• Neither parallel nor perpendicular

• Perpendicular

• Intersecting

Which of the following statements is true about parallel lines?

• Parallel lines intersect at one point.

• Parallel lines intersect at multiple points.

• Parallel lines are always perpendicular to each other.

• Parallel lines never intersect.

Which of the following statements is true about perpendicular lines?

• They intersect at a 90-degree angle.

• They never intersect.

• They intersect at a 45-degree angle.

• They intersect at a 180-degree angle.

y = 3x +2

y = 3x - 3

These lines are...

• Parallel

• Perpendicular

• Neither

Which of the following letters is not an example of perpendicular lines?

• L

• T

• N

• H

If the slope of one of the perpendicular lines is -3/4, then what will be the slope of the other perpendicular line?

• -3/4

• -4/3

• 3/4

• 4/3

If two lines are perpendicular, then which of the following is true?

• None of these.

• Their slopes are equal.

• The slope of them are negative reciprocals of each other.

• They never intersect with each other.

If the slope of one of the two parallel lines is 5, then what will be the slope of the other parallel line?

• 1

• 5

• -5

• 0

What is the product of the slopes of two perpendicular lines?

• Undefined

• 0

• -1

• 1