what is the slope of a line that is y=-12????
All lines of the form y = a have a slope of 0.....to see why....look at at any two points on this line.....for example (2, -12) and (3 - 12)
The slope between these two points = [ -12 - (-12) ] / [ 3 - 2] = [-12 + 12] / 1 = 0 / 1 = 0
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