How to find the slope of parallel lines - Math

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Question

Which of the following lines would be parallel to the line described by the equation?

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Answer

The way to determine parallel lines is to look at the slope. That means when you look at the equation in slope-intercept form, , you're looking at the .

In the given problem, the slope is . Parallel lines will have identical slopes; thus, any line that is parallel to the line described by the equation would ALSO have a slope of . Only one answer choice satisfies that requirement:

.

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