# Using Slopes to Prove Lines Are Parallel or Perpendicular

Instructions:

question 1 of 3

### Which of the following are true statements?

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### 2. If a line has slope 7/9, what is the slope of a line that is perpendicular to that line?

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In this quiz and worksheet combo, you will be able to practice finding the slopes for lines that are parallel and perpendicular to each other. You can do this with given points, as well as given slopes.

## Quiz & Worksheet Goals

Expect to see the following in your questions on this quiz and worksheet:

• Characteristics of slopes
• Perpendicular of a given slope
• Parallel vs. perpendicular lines with given points

## Skills Practiced

• Problem solving - use given information to determine whether lines are parallel or perpendicular
• Defining key concepts - ensure you understand how to describe parallel and perpendicular slopes
• Knowledge application - apply your existing knowledge to give a formula for slopes