Why does a horizontal line have a slope of 0, but a vertical line has anundened slope?

1 answer:

4 0

<span>The slope of a line is defined as the rate of change on the vertical axis, divided by the rate of change on the horizontal axis, Î”y/Î”x. So for a horizontal line, the rate of change on the y axis is zero, this means that it's slope will be 0/Î”x and for vertical line, x-axis does not change, which make the denominator 0 Î”y/0.</span>

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