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| PAGE: 177 | SET: Exercises | PROBLEM: 18 |
Find the slopes of two lines using the given points.
Slope of line 1:
The given points on the line 1 
.
The slope formula is 
.
(Write the formula)
(Substitute 
)
(
)
Slope of line 1:
The given points on the line 2 
The slope formula is .
(Write the formula)
(Substitute 
)
(Simplify)
Since the slopes of two lines equal so the pair of lines is parallel.
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