This paper explains the characteristics of Transverse Mercator projections, the relationship of plane grids to USGS map cells, and the reasons DRG's and other USGS digital products are projected on the UTM.
âº If two amounts are proportional, they change at the same rate so that the relationship between them does not change: 1  Weight is proportional to size. 2  How far you go is directly proportional to how fast you go (= as one thing increases, the other increases at exactly the same rate).
Direct proportional graph is very distinctive. In direct proportionality, graph will a straight line that passes through the origin and its slope is the constant of proportionality. If there is a straight line means the two physical quantities has positive relationships as the slope is positive.