# How do you find the first five terms given #a_1=9# and #a_(n+1)=2a_n-4#?

##### 1 Answer

Nov 7, 2016

Please see the explanation for steps leading to an answer

#### Explanation:

I recommend that you use an Excel Spreadsheet.

Enter 9 into cell A1

Enter

Use Excel's clipboard to copy the formula in A2 and paste it into cells A3 through A5.

You will observe the following numbers in cells A1 through A5:

9

14

24

44

84

If you want more terms, copy and paste the formula into more cells.