Identifying Parallel Lines and Slopes

Front

Back

The slope is 3.

Front

How can you determine if two lines are parallel?

Back

Two lines are parallel if they have the same slope.

Front

What is the slope-intercept form of a line?

Back

Front

If a line has a slope of -5, what is the slope of a line parallel to it?

Back

The slope of a parallel line is also -5.

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Back

Front

Back

The slope is -1/2.

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Back

Front

What is point-slope form of a line?

Back

Front

Write the point-slope form of a line with a slope of -5 that goes through the point (2, -3).

Back

Front

Back

Yes, they are parallel because they have the same slope of 2.