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Goal: Identify and graph functions..  Relation: mapping or pairing, of input values with output values.  Domain: Set of input values.  Range: set of.

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Presentation on theme: "Goal: Identify and graph functions..  Relation: mapping or pairing, of input values with output values.  Domain: Set of input values.  Range: set of."— Presentation transcript:

1 Goal: Identify and graph functions.

2  Relation: mapping or pairing, of input values with output values.  Domain: Set of input values.  Range: set of output values.  Function: a relation is a function if each input value has exactly one output.

3  Identify the domain and range. Then tell whether the relation is a function. Explain.

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6  Graph the relations from Ex. 1. Use the vertical line test to tell whether the relation is a function.

7  A. graph the relation shown in the diagram below.  B. Explain how to use the vertical line test to show whether the relation is a function.

8  Equations in two variables: such as y = 5x – 2; an ordered pair (x, y) is a solution of such an equation if substituting the values of x and y into the equation makes a true statement.  Independent variable: the input variable in an equation.  Dependent variable: the output variable.

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10  Graph y = x + 1

11  y = x - 3

12  y = -x + 4

13  y = 2x + 3

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15 p. 70 – 72 14 – 46 even, 52-56


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