7th pre alg -l41

Lesson 41.notebook

Assignment:
1>Test #5 Review Handout Due Tomorrow (11/5)
2>Test #5 Tomorrow (11/5)

November 04, 2013

Lesson 41.notebook

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

November 04, 2013

Lesson 41.notebook

November 04, 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

November 04, 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
y

x

y

X

Lesson 41.notebook

November 04, 2013

y

B) y = 2x 1

x

y
X

Lesson 41.notebook

November 04, 2013

C) y = 1/2x + 1

x

y
y
X

Lesson 41.notebook

November 04, 2013

D) y = 2x

x

y

Y

X

Lesson 41.notebook

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

November 04, 2013

7th pre alg -l41

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