The document discusses functions and function tables. It defines key vocabulary like function rule, input, output, domain, and range. It then provides examples of determining the rule that describes a function based on a function table and completing missing values in a function table based on the relationship between variables.

1. 2d Complete a function table based on a given rule and vice versa. (DOK 1)By: Deia Sanders

2. VocabularyFunction or Function Rule – a formula where the output depends on the inputExample:In the function rule y = 2x + 3 the value of y depends on the number you put in place of the x.Function Table – a table of pairs of numbers that are a functionThe first variable is called the independent variable and the second is called the dependent variable.Input – the number you put in the place of the independent variable in a function rule

3. VocabularyOutput – the number that results when you put a number in a function or function ruleDomain – the set of all first numbers (input values)Range – the set of all second numbers (output values)

4. Determine the Rule that Describes a FunctionWhich rule describes the function?a) y = x – 1b) y = x + 1c) y = 2x + 1d) y = 2x – 1XY0113To be the correct equation you must be able to answer “true” for every pair.Substitute the values of x and y into each answer choice. The values of x are the input values or the domain. The values of y are the output or the range.52

5. Predict Values for a Function TableComplete the table of values.From the values shown, b is twice as large as a or b = 2a.When a = 4, b = 8.When b = 20, a = 10.AB36471420Complete the table of values.AB13There is no consistent relationship between a and b. For an example like this, a graph may help to determine the missing values.24364Turn to Handout #1

6. Come up with your own table!XYXY