SOLUTION: how do you write equations in slope-intercept form and then how can you tell if each pair of lines is parallel, perpendicular, or neither? y = -4x + 1 and y = -4x - 5

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they are already in slope intercept form y=mx+b where m is the slope
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these have the same slope of -4 so they are parallel lines
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to be perpendicular the slopes must be negative inverses of each other such as
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4 and -1/4 or 6 and -1/6