# Algebra 1 : How to find out if lines are parallel

## Example Questions

### Example Question #91 : How To Find Out If Lines Are Parallel

Determine if the lines are parallel and find their slopes:

Explanation:

In order to determine if two lines have the same slope first write them according to slope-intercept form, where "m" is the slope of the line:

Do that for each line:

Both lines have a slope of -2 which makes them parallel.

### Example Question #92 : How To Find Out If Lines Are Parallel

Determine if the lines are parallel and find their slopes:

Explanation:

In order to determine if two lines have the same slope first write them according to slope-intercept form, where "m" is the slope of the line:

Do that for each line:

Both lines have a slope of 2 which makes them parallel.

### Example Question #561 : Equations Of Lines

Determine if the lines are parallel and find their slopes:

Explanation:

In order to determine if two lines have the same slope first write them according to slope-intercept form, where "m" is the slope of the line:

Do that for each line:

Both lines have a slope of 6 which makes them parallel.

### Example Question #562 : Equations Of Lines

Determine if the lines are parallel and find their slopes:

Explanation:

In order to determine if two lines have the same slope first write them according to slope-intercept form, where "m" is the slope of the line:

Do that for each line:

Both lines have a slope of 2 which makes them parallel.

### Example Question #563 : Equations Of Lines

Determine if the lines are parallel and find their slopes:

Explanation:

In order to determine if two lines have the same slope first write them according to slope-intercept form, where "m" is the slope of the line:

Do that for each line:

Both lines have a slope of 1 which makes them parallel.

### Example Question #564 : Equations Of Lines

Determine if the two lines are parallel and find their slopes:

Explanation:

In order to determine if two lines have the same slope first write them according to slope-intercept form, where "m" is the slope of the line:

Do that for each line:

The first line has a slope of -6, while the second has a slope of -7/2 meaning the lines are not parallel.

### Example Question #565 : Equations Of Lines

Determine if the lines are parallel and find their slopes:

Explanation:

In order to determine if two lines have the same slope first write them according to slope-intercept form, where "m" is the slope of the line:

Do that for each line:

The first line has a slope of -1/2, while the second has a slope of 1/2 meaning the lines are not parallel.

### Example Question #4101 : Algebra 1

Determine if the lines are parallel and find their slopes:

Explanation:

In order to determine if two lines have the same slope first write them according to slope-intercept form, where "m" is the slope of the line:

Do that for each line:

The first line has a slope of 1/4, while the second has a slope of 1/3 meaning the lines are not parallel.

### Example Question #4102 : Algebra 1

Determine if the lines are parallel and find their slopes:

Explanation:

In order to determine if two lines have the same slope first write them according to slope-intercept form, where "m" is the slope of the line:

Do that for each line:

The first line has a slope of 1, while the second has a slope of 2/3 meaning the lines are not parallel.

### Example Question #4103 : Algebra 1

Determine if the lines are parallel and find their slopes: