To find the terms, multiply by .5
5, .5 times 5 = 2.5, .5 times 2.5 = 1.25, .5 times 1.25 = .625, .5 times .625 = .3125
1. Each letter is paired with each of the other letters to produce all the permutations of 2 letters. There are 6×5 = 30 of them.
FA FB FR FI FC .. A.F AB AR AI AC .. BF BA BR BI BC .. RF RA RB RI RC .. IF IA IB IR IC .. CF CA CB CR CI
2. The linear regression function of a graphing calculator can be used to find the line of best fit. Generally, this involves entering the given coordinates and invoking the appropriate regression calculation.
... calories ≈ 13.9×(fat grams) + 191.3