Math
posted by Anonymous .
1) Write the correct function rule that describes the relationship shown in the table below.
X f(x)
1 1
2
3
4
5

No functional "relationship" is shown, except at x=1. You need to complete the table.

The table is
X f(x)
1 1
2 2
3 5
4 8
5 11 
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 
thanks so much

You are welcome :)