Lesson 41.notebook

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December 13, 2012

Assignment:

1­­>Set 41 (odds) ­ Due Monday (12/17)

Lesson 41.notebook

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December 13, 2012

Lesson 41 Warm­Up:1) Find the area of a circle with a diameter of 6m.

[Use 3.14 for pi]

2) Find the circumference of a circle with a diameter of 6m. [Use 3.14 for pi]

3) Write 4,137,580,000 in scientific notation.

4) Simplify: (­2) ­ (­6) + (­4)

5) Simplify:(­2)(­6) ­4

Lesson 41.notebook

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December 13, 2012

Lesson 41:

*function – a mathematical rule that identifies a relationship between 2 sets of numbers; for each input there is only one output

*linear function – if all the input­output pairs of a function fall on a line

*For a graph to be proportional, it must be:­linear, ­­pass through (0, 0), ­­­and rises to the right

Lesson 41.notebook

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December 13, 2012

Examples ­ Lesson 41:For the following functions, make a function table and use the values to graph the equation. Last, determine if the function is proportional or not.A) y = 3x

x y

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December 13, 2012

B) y = 2x ­ 1

x y

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C) y = 1/2x + 1

x y

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D) y = ­2x

x y

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E) Does x = 8 and y = 3 satisfy the function y = 1/4x + 1?