What are parallel lines?
Identifying Parallel and Perpendicular Lines

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•
Mathematics
•
8th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
Lines that never intersect and have the same slope.
2.
FLASHCARD QUESTION
Front
What are perpendicular lines?
Back
Lines that intersect at a right angle (90 degrees) and have slopes that are opposite reciprocals.
3.
FLASHCARD QUESTION
Front
What is the slope of a line in the form y = mx + b?
Back
The slope (m) represents the steepness of the line.
4.
FLASHCARD QUESTION
Front
If two lines have slopes m1 and m2, when are they parallel?
Back
They are parallel if m1 = m2.
5.
FLASHCARD QUESTION
Front
If two lines have slopes m1 and m2, when are they perpendicular?
Back
They are perpendicular if m1 * m2 = -1.
6.
FLASHCARD QUESTION
Front
What is the slope of the line y = 2/3x + 3?
Back
The slope is 2/3.
7.
FLASHCARD QUESTION
Front
What is the slope of a line that is perpendicular to y = 2/3x + 3?
Back
The slope is -3/2.
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