Posted by **austin** on Wednesday, January 10, 2007 at 5:21pm.

I need a definition for this

constant rate of change when graphing in mathematics and for

Positive and Negative correlation

and also what the pattern is in this

a) 1000, 100, 10, 1

I'll give you a definition for positive and negative correlation.

Correlation is a linear relationship between two variables. Correlation can range from -1.00 through 0 to + 1.00. Zero means an absence of a linear relationship. -1.00 is a perfect negative correlation. +1.00 is a perfect positive correlation. Whether the correlation is negative or positive, the closer it is to -1.00 or +1.00, the stronger it is.

An easy way to think of positive correlation might be: when one goes up, the other goes up. Negative correlation: when one goes up, the other goes down. The closer to 0, the weaker the correlation.

I hope this part will help.

what is the difference between linear and non-linear correlation?