Find the slope of the line containing each given pair of points.  If slope is undefined, state this. (-10,3) and (-10,4)

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the slope is y2-y1/x2-x1So, plug in the values:The second y value is 4, and the first y value is 3The second x vlaue is -10, and the first x value is -104-3/(-10)+10Since the -10-(-10) cancels out the zero, the slopes is undefined. Whenever there is a zero in the denominator of a fraction, it is undefined.