Two non-vertical lines are parallel if and only if their
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Answer:
Two non-vertical lines are parallel if and only if they are horizontal lines
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Step-by-step explanation:
Two nonvertical lines are parallel if and only if their slopes are equal and they have different y-intercepts. ... Find the slope and y-intercept of each line by writing their equations in slope intercept form. If the slopes are the same but the y-intercept are different, then the lines are parallel.
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