Practice Objectives
• Demonstrate the ability to determine if two lines are parallel
• Demonstrate the ability to determine if two lines are perpendicular
• Demonstrate the ability to write the equation of a line in standard form

## Practice Working with Parallel and Perpendicular Lines

Instructions:

Answer 7/10 questions correctly to pass.

Problem:

Correct!

Not Correct!

Determine if Two Lines are Parallel or Perpendicular:

1. Find the slope of each line
2. If the slopes are the same, the two lines are parallel
3. If the slopes have a product of -1, the lines are perpendicular

Write the Equation of a Line in Standard Form:

1. Use the given information to obtain the slope
• Parallel lines have the same slope
• Perpendicular lines have slopes whose product is -1
2. Use the given point and the slope from the previous step and plug into point-slope form
3. Place the equation in standard form
• ax + by = c, a ≥ 0
• a, b, and c are integers
• The GCF of a, b, and c is 1

Step-by-Step:

You Have Missed 4 Questions...

$$ax + by = c$$
a =
b =
c =

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