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What is the difference between independent and dependent variable?
In any (well designed) experiment, there is one variable that the experimenter can control that affects one (or more) variables. The variable that the experimenter changes is called the independent variable. On the other hand, the other variable is dependent on the other for its change. Therefore, it is the "dependent variable."
How do you find zeros of a polynomial?
If there is one variable. Then put each variable equal to zero and then solve for the other variable.
When using the substitution to solve nonlinear system of equations you should first see if you can one variable if you can one variable in one of the equation in the system?
The general idea is to solve one of the equations for one variable - in terms of the other variable or variables. Then you can substitute the entire expression into another equation or other equations; as a result, if it works you should end up having one less equation, with one less variable.
When one variable increases in an inverse relationship what does the other one do?
decrease
Why must the exponents of variables in a linear equation e equal to one?
linearity is defined as the situation when all variable exponents are equal to one
