A theater has 50 seats in the front row.There are 4 additional seats in each row following row. Write a rule to represent the nu
mber of seats in any given row as an explicit formula.
1 answer:
Answer:
f(n) = 46 +4n . . . . . . where f(n) is the number of seats in row n
Step-by-step explanation:
The numbers form an arithmetic sequence with first term 50 and common difference 4. The general term for such a sequence is ...
... a[n] = a[1] + d·(n -1)
... = 50 + 4(n -1) . . . . filling in your numbers
... = 46 + 4n . . . . . . . simplify
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