Question 1011424
this is a horizontal line at y = -2.
slope equals change in the value of y divided by change in the value of x.
the formula is (y2-y1) / (x2-x1).
there is no change in the value of y, so the slope is 0.


a more interesting question is what is the slope of the line x = -2.


this is vertical line at x = -2.
the slope is undefined.
slope equals change in the value of y divided by change in the value of x.
the formula is (y2-y1) / (x2-x1).
there is no change in the value of x, so the slope is undefined because you are dividing by the change in the value of x which is 0.


here's a graph of y = -2 and x = -2.
the blue line is x = -2
the red line is y = -2


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