What Does The Slope Of A Line Indicate About The Line?


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The slope is a rate of change.  It can also tell us something about its angle from the horizontal.

A positive slope means an upward angle.  A negative slope goes downward.

Let's take an example of a roof with a slope of 4:12.  Here we mean that it rises 4 inches for every 12 inches of run.
So if we were to plot this, it would be y=(1/3)x  where the slope is 4/12 or 1/3.

A slope of 1 would be something that rises one unit for every unit of horizontal run.

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