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Positive correlation.Positive correlation.Positive correlation.Positive correlation.
If the two variables increase together and decrease together AND in a linear fashion, the correlation is positive. If one increases when the other decreases, again, in a linear fashion, the correlation is negative.
quantitative mathematics algebra
On a graph it is shown by a line that goes from the bottom left towards the top right. There are fewer conventions about presenting data in a table and it is not possible to say how it might be shown. One possibility is that there is a column of y values and a column of x values. And both increase (decrease) together.
An area, in its simplest form is derived by multiplying together two lots of the basic quantities - lengths.