Answer:
<u><em>The slope is undefined because the x value is same and what we have will be a vertical line through the point x = -4</em></u>
Step-by-step explanation:
<em>Here, we want to get the slope between the points (-4,-1) and (-4,3)</em>
<em>Mathematically, we can do this by using the slope equation below:</em>
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<em>The coordinates with the subscript 1 represents the first point, while the coordinates with the subscript 2 represents the second point</em>
<em>We have that as follows:</em>
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<em>Now, we susbtitute the values into the slope equation above:</em>
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<em>= Undefined.</em>
<em>The slope is undefined because the x value is same and what we have will be a vertical line through the point x = -4</em>