Question 1100234
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Line m passes through the points (-4, 3) and (-4, 7). What is the slope of the line that is parallel to line m? Please show all calculations.
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Since x-coordinates of the two given points are the same, the straight line passing through them is VERTICAL line parallel to y-axis.


The slope is UNDEFINED for such line.

The line parallel to that line is vertical, too,

and its slope is UNDEFINED as well.
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