```Independent variable - The factor in the equation that is not determined by any other component in the equation.

Dependent variable - A factor in an equation that is determined by the independent and various components such as constants and their relationships.

Linear Relationship - Throughout the entire domain (input values), the relationship between any given outputs is the same.

Slope -  the relationship between any given outputs is the same.

Quadratic Relationship - The output of the equation is dependent on the square of the input.

Slope - the slope at any given point is dependent on the original equation.

Scientific method - obtain data, make predictions, test predictions.

Scientific law - a rule of nature that sums up related observations describing a pattern of nature.

Scientific theory - An explanation based on many observations supported by experiment.

Significant digits -  Valid digits in a measurement. Results can never be more precise than the least precise measurement. e.g. 3.86 + 2.4, round to tens place.

Measurement - comparison between an unknown quantity and a standard.

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