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1. Using the letters in the word FABRIC, find the number of permutations that can be formed using 2 letters at a time. Show your
work or explain how you got your answer.
2. The table shows the fat content and calories for the burgers at a fast food chain.
Write the best fit line that models the impact of fat content on calories. Explain how you got your answer.
2. The table shows the fat content and calories for the burgers at a fast food chain.
Write the best fit line that models the impact of fat content on calories. Explain how you got your answer.
1 answer:
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
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