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Question: Which of the following function rules satisfies the table?



A ) f (n) = 2n + 1
B ) f (n) = 2n - 1
C ) f (n) = 2n
D ) f (n) = 2n + 2

Steps to derive

1 A function is an entity, which gives the relationship between the output and input.

2 The function is denoted by f(n).

3 Let n represent the input in the table.

4 Output = 2 × Input + 1 = 2 × n + 1

5 The function, which satisfies the table is f(n) = 2n + 1.



Hence the right answer is Option A

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