Parallel and Perpendicular Lines
Flashcard
•
Mathematics
•
8th - 12th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What are parallel lines?
Back
Parallel lines are lines in a plane that never meet or intersect. They have the same slope.
2.
FLASHCARD QUESTION
Front
What are perpendicular lines?
Back
Perpendicular lines are lines that intersect at a right angle (90 degrees). Their slopes are opposite reciprocals.
3.
FLASHCARD QUESTION
Front
If two lines have slopes of 2 and -1/2, what are they?
Back
They are perpendicular lines because their slopes are opposite reciprocals.
4.
FLASHCARD QUESTION
Front
If two lines have slopes of 3 and 3, what are they?
Back
They are parallel lines because they have identical slopes.
5.
FLASHCARD QUESTION
Front
What is the slope of a line parallel to the line y = 4x + 1?
Back
The slope is 4, as parallel lines have the same slope.
6.
FLASHCARD QUESTION
Front
What is the slope of a line perpendicular to the line y = -2x + 5?
Back
The slope is 1/2, as it is the opposite reciprocal of -2.
7.
FLASHCARD QUESTION
Front
Are the lines represented by the equations y = 1/3x + 2 and y = 1/3x - 4 parallel, perpendicular, or neither?
Back
They are parallel because they have the same slope of 1/3.
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