parallel & perpendicular lines quiz

If two lines are parallel their slopes are  ____________

• the same.
• negative reciprocals of each other.

If two lines are perpendicular to each other their slopes are ____________

• the same.

• opposite reciprocals of each other.

Find the slope of the line that goes through the points (-8,6) and (7,-3).

• 1/3
• -1/3
• -3/5
• -5/3

Are these two lines parallel, perpendicular or neither?
y = -1/3x - 5
y = 1/3x + 2

• Parallel
• Perpendicular
• Neither

Which of the following lines is PERPENDICULAR to the graph of y = -6x + 3 ?

Which of the following lines is PARALLEL to the graph of 5x + 2y = 8?

What is the slope of the line that is perpendicular to the line in the graph?

• 5

• -5

• ⅕

• -⅕

What is the slope of a line parallel to the line: -2x + y = - 7?

• -2

• 1/2

• -1/2

• 2

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

• -2

• 1/2

• -1/2

• 2

y = 3x +2

y = 3x - 3

These lines are...

• Parallel

• Perpendicular

• Neither

• The same line