How to find out if lines are parallel - SSAT Upper Level Quantitative
Card 0 of 84
Which of the following lines is parallel to the line 
Which of the following lines is parallel to the line
Parallel lines have the same slope. Start by putting the given equation in 
form to figure out its slope.
Subtract 
from each side of the equation:
Divide each side of the equation by 
:
Since the presented equation has a slope of 
, the correct answer choice's equation will also have a slope of 
. This makes the correct answer 
.
Parallel lines have the same slope. Start by putting the given equation in
Subtract
Divide each side of the equation by
Since the presented equation has a slope of
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Which of the following lines is parallel to:
Which of the following lines is parallel to:
First write the equation in slope intercept form. Add 
to both sides to get 
. Now divide both sides by 
to get 
. The slope of this line is 
, so any line that also has a slope of 
would be parallel to it. The correct answer is 
.
First write the equation in slope intercept form. Add
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Which pair of linear equations represent parallel lines?
Which pair of linear equations represent parallel lines?
Parallel lines will always have equal slopes. The slope can be found quickly by observing the equation in slope-intercept form and seeing which number falls in the "
" spot in the linear equation 
,
We are looking for an answer choice in which both equations have the same value. Both lines in the correct answer have a slope of 2, therefore they are parallel.
Parallel lines will always have equal slopes. The slope can be found quickly by observing the equation in slope-intercept form and seeing which number falls in the "
We are looking for an answer choice in which both equations have the same
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Which of the following equations represents a line that is parallel to the line represented by the equation 
?
Which of the following equations represents a line that is parallel to the line represented by the equation
Lines are parallel when their slopes are the same.
First, we need to place the given equation in the slope-intercept form.
Because the given line has the slope of 
, the line parallel to it must also have the same slope.
Lines are parallel when their slopes are the same.
First, we need to place the given equation in the slope-intercept form.
Because the given line has the slope of
Compare your answer with the correct one above
Which of the following lines is parallel to the line 
?
Which of the following lines is parallel to the line
Lines that are parallel have the same slope, so the correct answer must also have the slope of 
.
Lines that are parallel have the same slope, so the correct answer must also have the slope of
Compare your answer with the correct one above
Which of the following lines is parallel to 
?
Which of the following lines is parallel to
Lines that are parallel must have the same slope. Thus, the correct answer must also have a slope of 
.
Lines that are parallel must have the same slope. Thus, the correct answer must also have a slope of
Compare your answer with the correct one above
Which of the following lines is parallel to the line 
?
Which of the following lines is parallel to the line
First, put the equation in the more familiar 
format to see what the slope of the given line is.
Lines that are parallel must have the same slope. Thus, the correct answer must also have a slope of 
.
First, put the equation in the more familiar
Lines that are parallel must have the same slope. Thus, the correct answer must also have a slope of
Compare your answer with the correct one above
Which of the following lines is parallel with the line 
?
Which of the following lines is parallel with the line
First, put the given equation in the more familiar 
format to find out the slope of the given line.
Lines that are parallel must share the same slope. Thus, the line that is parallel has a slope of 
.
First, put the given equation in the more familiar
Lines that are parallel must share the same slope. Thus, the line that is parallel has a slope of
Compare your answer with the correct one above
Which of the following lines is parallel to the line 
?
Which of the following lines is parallel to the line
For two lines to be parallel, their slopes must be the same. Thus, the line that is parallel to the given one must also have a slope of 
.
For two lines to be parallel, their slopes must be the same. Thus, the line that is parallel to the given one must also have a slope of
Compare your answer with the correct one above
Which of the following lines is parallel to the line given by the equation 
?
Which of the following lines is parallel to the line given by the equation
These two lines must share the same slope of 
to be parallel. You can identify the slope of a line in 
form easily, as the slope is the value of 
. The only answer choice that has a slope of 
is 
, so it is the correct answer.
These two lines must share the same slope of
Compare your answer with the correct one above
Which of the following lines is parallel with the line 
?
Which of the following lines is parallel with the line
Parallel lines have the same slope. The slope of a line in slope-intercept form 
is the value of 
. So, the slope of the line is 
. That means that for the two lines to be parallel, the slope of the second line must also be .
Parallel lines have the same slope. The slope of a line in slope-intercept form
Compare your answer with the correct one above
Which of the following lines is parallel to the line 
?
Which of the following lines is parallel to the line
Parallel lines have the same slope. The slope of a line in slope-intercept form 
is the value of 
. So, the slope of the line is 
. That means that for the two lines to be parallel, the slope of the second line must also be 
.
Parallel lines have the same slope. The slope of a line in slope-intercept form
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Which of the following lines is parallel with the line with equation 
?
Which of the following lines is parallel with the line with equation
Parallel lines have the same slope. The slope of a line in slope-intercept form is the value of . So, the slope of the line is 
. That means that for the two lines to be parallel, the slope of the second line must also be 
.
Parallel lines have the same slope. The slope of a line in slope-intercept form
Compare your answer with the correct one above
Which of the following lines is parallel to the line 
?
Which of the following lines is parallel to the line
Parallel lines have the same slope. The slope of a line in slope-intercept form is the value of . So, the slope of the line 
is 
. That means that for the two lines to be parallel, the slope of the second line must also be 
.
Parallel lines have the same slope. The slope of a line in slope-intercept form
Compare your answer with the correct one above
Which of the following lines is parallel to the line with the equation 
?
Which of the following lines is parallel to the line with the equation
Parallel lines have the same slope. The slope of a line in slope-intercept form is the value of . So, the slope of the line is 
. That means that for the two lines to be parallel, the slope of the second line must also be 
.
Parallel lines have the same slope. The slope of a line in slope-intercept form
Compare your answer with the correct one above
Which of the following equations is parallel to the line with the equation 
Which of the following equations is parallel to the line with the equation
Parallel lines have the same slope. The slope of a line in slope-intercept form is the value of . So, the slope of the line is 
. That means that for the two lines to be parallel, the slope of the second line must also be 
.
Parallel lines have the same slope. The slope of a line in slope-intercept form
Compare your answer with the correct one above
Which of the following lines is parallel to the line 
Which of the following lines is parallel to the line
Parallel lines have the same slope. Start by putting the given equation in 
form to figure out its slope:
Subtract 
from each side of the equation:
Divide each side of the equation by 
:
The slope of both this line and the one parallel to it must be 
.
Parallel lines have the same slope. Start by putting the given equation in
Subtract
Divide each side of the equation by
The slope of both this line and the one parallel to it must be
Compare your answer with the correct one above
Which of the following lines is parallel to the line 
Which of the following lines is parallel to the line
Parallel lines have the same slope. Start by putting the given equation in 
form to figure out its slope.
Divide both sides of the equation by 
:
Subtract 
from both sides of the equation:
Divide both sides of the equation by 
:
The given line has a slope of 
, so the answer choice equation needs to have a slope of 
as well.
Parallel lines have the same slope. Start by putting the given equation in
Divide both sides of the equation by
Subtract
Divide both sides of the equation by
The given line has a slope of
Compare your answer with the correct one above
Which of the following lines is parallel to the line with the equation 
Which of the following lines is parallel to the line with the equation
Parallel lines have the same slope. Start by putting the given equation in 
form to figure out its slope.
Subtract 
from each side of the equation:
Divide both sides of the equation by 
:
The given line has a slope of 
, so the answer choice equation will need to have a slope of as well to be parallel to the given line.
Parallel lines have the same slope. Start by putting the given equation in
Subtract
Divide both sides of the equation by
The given line has a slope of
Compare your answer with the correct one above
Which of the following lines is parallel to the line with the equation 
?
Which of the following lines is parallel to the line with the equation
Parallel lines have the same slope. Start by putting the given equation in 
form to figure out its slope.
Subtract 
from each side of the equation:
Divide each side of the equation by 
and reduce:
The given line has a slope of 
, so the answer choice equation will need to have a slope of as well to be parallel to the given line.
Parallel lines have the same slope. Start by putting the given equation in
Subtract
Divide each side of the equation by
The given line has a slope of
Compare your answer with the correct one above