Asked Apr 22, 2019

What is the slope of a horizontal line?


Expert Answer

Step 1

The slope m of the line containing the points (x1,y1) and (x2,y2) is, the change in y divided by the change in x.

That is, 

Step 2

For a horizontal line, the y coordinate is the same and the x coordinate varies.

That is, 

Step 3

Thus, the equation of th...


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