7th pre alg -l41--jan8
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Lesson 41.notebook January 08, 2013
Assignment:
1>Set 41 (odds) Due Tomorrow (1/9)
2>Test #6 Friday (1/11)
Lesson 41.notebook January 08, 2013
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 January 08, 2013
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 January 08, 2013
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
Lesson 41.notebook January 08, 2013
B) y = 2x 1
x y
Lesson 41.notebook January 08, 2013
C) y = 1/2x + 1
x y
Lesson 41.notebook January 08, 2013
D) y = 2x
x y
Lesson 41.notebook January 08, 2013
E) Does x = 8 and y = 3 satisfy the function y = 1/4x + 1?