Parallel Lines
This lesson covers:
- What 'parallel' means
- How to tell whether lines are parallel to each other
- How to write the equation of a parallel line
Do parallel lines have the same gradients, or different gradients?
Different gradients
Same gradients
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Will 2 lines that are parallel to each other ever touch?
Yes
No
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When line equations are written in the form 'y = mx + c', what does the m represent?
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Which two lines below are parallel?
y=3x+4
y=2x+4
y=−3x+1
y=3x−1
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Which two lines below are parallel?
y=32x+1
y=25x−3
2y=5x+2
3y=3x+7
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Line A has the equation y = 2x - 6.
Line B is parallel to line A and passes through the point (2, 5).
Find the equation of line B.
(Give your answer in the form y = mx + c).
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Line A has the equation y = 3x - 5.
Line B is parallel to line A and passes through the point (-2, 1).
Find the equation of line B.
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