Introduction
- A linear equation is an equation, when graphed, produces a straight line.
- For example:
- More generally, it is any equation of the form:
- a_{1} to a_{n} and b are real numbers, and are the coefficients of the equation.
- x_{1} to x_{n} are the variables of the equation.
- Linear equations do not contain terms such as:
- x^{2}
- 2^{x}
- Because these terms are not linear
- they do not produce straight lines when graphed.