Study Guide and Review
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The given rule means that each iterate of the function is found by multiplying the previous value by 6 and then subtracting 1.
11, 65, 389
We are asked to find the first three iterates of a function, given an initial value. x_0&=2 f(x)&=6x-1 Let's use a table to organize our calculations.
| n | x_n | f(x)=6x-1 | x_(n+1) |
|---|---|---|---|
| 0 | x_0= 2 | 6 x_0-1=6( 2)-1 | 11 |
| 1 | x_1= 11 | 6 x_1-1=6( 11)-1 | 65 |
| 2 | x_2= 65 | 6 x_2-1=6( 65)-1 | 389 |
| 3 | x_3= 389 | - | - |
Therefore, the first three iterates of the function are 11, 65, and 389.