Posted by **Anonymous** on Monday, January 28, 2008 at 8:22pm.

1) Write the correct function rule that describes the relationship shown in the table below.

X f(x)

1 -1

2

3

4

5

- Math -
**drwls**, Monday, January 28, 2008 at 8:24pm
No functional "relationship" is shown, except at x=1. You need to complete the table.

- Oops -
**Anonymous**, Monday, January 28, 2008 at 8:24pm
The table is

X f(x)

1 -1

2 2

3 5

4 8

5 11

- Math -
**Damon**, Monday, January 28, 2008 at 8:33pm
trick:

X f(x) then column of change in f(x)

1 -1

#### 3

2 2

#### 3

3 5 a ha, change in y constant for 1 unit change in x so --- constant slope = 3/1 and form y = 3 x + b

#### 3

4 8

#### 3

5 11

So put in a x and f(x)

like (1,-1)

-1 = 3 (1) + b

b = -4

so

y = 3 x - 4

- Math -
**Anonymous**, Monday, January 28, 2008 at 8:37pm
thanks so much

- Math -
**Damon**, Monday, January 28, 2008 at 8:38pm
You are welcome :)

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