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A linear equation is an algebraic equation that involves a constant and a first-order term. The equation is written as y=mx+b, where m is the slope and b is the y-intercept.
Here are some examples of linear equations: y = 3 + 2x y = -0.01 + 1.2x y = 25 + 20x 2x + y - 3 = 0
The graph of a linear equation is a straight line. The slope of a line is the amount by which it rises or falls. It is calculated by the formula rise/run.
Here are some steps for solving linear equations: Expand brackets Group like terms together Simplify the equation Remove constants from the variable Check the answer
Linear equations can be used for many real-world applications, such as: Calculating the outside temperature from the number of times crickets chirp in one minute Figuring out how fast a projectile is moving Converting one unit of measure to another Calculating rates, such as how quickly a chemical reaction is proceeding.
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