Data obtained from the experiment. Most of them consist of two or more variables, the variables are related, such as matters of free fall. The speed as a function of time in a linear manner with the (v = u + at) displacement as a function of time with in motion (the) correlation of variables to look at variables, one dependent on the other one. With one of the variables is the independent variable (x, independent variable) and another variable as follow (dependent variable) from the equation v = u + at & t is the independent variable is the variable from the equation v t is the independent variable, and y is the variable.
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