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Warm Up

Warm Up. 1. Make a mapping Diagram for the relations: {(0, 5), (-1, 5), (2, 3), (-3, -1)}. 2. Is the relation from problem # 1 a function? 3. Write the equation y = -3x + 4 in function notation. 4. Evaluate the function from problem # 3 for f(2). Formalizing Relations and Functions.

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Warm Up

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  1. Warm Up 1. Make a mapping Diagram for the relations: {(0, 5), (-1, 5), (2, 3), (-3, -1)}. 2. Is the relation from problem # 1 a function? 3. Write the equation y = -3x + 4 in function notation. 4. Evaluate the function from problem # 3 for f(2).

  2. Formalizing Relations and Functions Section 4.6 B

  3. Objective • TSWBAT • Determine whether a relations is a function. • Find Domain and Range. • Use Function Notation.

  4. Example 1 The domain of g(x) = 4x – 12 is {1, 3, 5, 7}. Find the range.

  5. Example 2 You have 3 qt of paint to paint the trim in your house. A quart of paint covers 100 ft2. The function A(q) = 100q represents the area A(q), in square feet, that q quarts of paint cover. What domain and range are reasonable for the function? What is a graph of the function.

  6. Assignment Pg. 293-294 # 3-7, 10-19

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