The plotting of data on a graph is used to observe, and subsequently describe, visible patterns that exist within the data.
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x - independent, y is dependent
When plotTing data over time, for example: horizontal axis: fish stock and vertical axis: year (1990-2010).
A graph is an image representing a mathematical concept, such as the relationship between a set of linked objects, or that of a set of points and the function operating on those points. A data chart is an image which visually presents the relationship between two data sets, one of which may or may not be a function of the other. There is some overlap, as a particular graph can also be a data chart. For example, a plotting of the parabola defined by the function y=x2 is a graph. A plotting of the variable curve defined by the number of animals in a region vs. the amount of available food is a data chart. And a plotting of the logarithmically-curved line showing how the mass of stars relates to their age could very well be both.
tools for collecting scientific data....one tool for recording,collecting, and analyzing data is a microscope :)))
A Graph containing data!! :)