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If there are only two variables, then the dependent variable has only one variable it can depend on so there is absolutely no point in calculating multiple regression. There are no other variables!
The dependent variable might be termed the "ordinate". The dependent variable in an experiment is the data you are collecting. When some variable depends on other variables, it is called the dependent variable. For example, the temperature of something will depend on how long you heat it, and the on the rate of heat input via a flame or something. The temperature would be a dependent variable, because it depends on the time and fuel input to the flame (independent variables). Sometimes written like y=function of x and z, or y=f(x,z). Here y is the dependent variable. You could then ask how much time it would take to get to a specified temperature. from that point of view, the time taken would depend on the input to the flame and the specified temperature. In that case the dependent variable in the problem is the time taken, since it depends on the other terms, now regarded as the independent variables since you are specifying them as inputs to the problem. <<>> Dependent variables are also sometines described as exogenous variables.
The two types of variables are: independent variables and dependent variables.Independent variables are variables (ideally only one or very few per experiment) that the experimenter manipulates in the experiment. For example, if you were testing the effect of temperature on plant growth rates, you would likely have similar plants in similar conditions but in areas with different temperatures. The experimenter is changing the temperature between the groups of plants, so the temperature would be the independent variable.The dependent variables are the effects the independent variable has on the experimental subjects. They are changes not being directly controlled or manipulated by the experimenter. In the above temperature vs. plant growth example, the rate of plant growth would be the dependent variable; it depends on the temperature.
At a constant rate: distance = time x speed Since you are calculating the distance based on the other two numbers, I would say that distance is the dependent variable (it is based on the values of the other variables).