[iframe src
=» http://giphy.com/embed/39CqBhycuM5kQ» width
=» 500 ″
height =» 202 ″ frameBorder
=» 0 ″ webkitAllowFullScreen mozallowfullscreen allowFullScreen][/ iframe] When your writing time is
limited, it's important that you make the most of it!
As I have explained, those sorts of things explain the slope of the line (how temperature varies with
height... or at least a
limit on how steeply temperature can fall with
height) but it does not determine the constant «b» in the equation «y
= m * x + b».