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| PAGE: 251 | SET: Exercises | PROBLEM: 22 |
The equations are 
and 
The line equation in slope-intercept form is 
.
where 
is the slope and 
is the 
-intercept.
Find the slope.
Here, the slope is 
.
Write the second equation in slope-intercept form.
(Original equation)
(Subtract 
from each side)
(Apply additive inverse property : 
)
Find the slope.
.
Here, the slope is 
.
Slope of the first equation is 
.
Slope of the second equation is 
.
If two lines are parallel, their slopes must be equal. (Or)
If two lines are said to be perpendicular,the product of their slopes is equal to 
.
Here in this case the two slopes are equal, hence they are parallel.
The lines are parallel.
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