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2 years ago

F(x)=f(x-1)+2x+1 if f(2) =17 what’s f(1)

Mathematics

1 answer:

irina [24]2 years ago

8 0

Answer:

f(1) = 12

Step-by-step explanation:

We know that f(x)=f(x-1)+2x+1

We are told that f(2) = 17

Use the first equation to calculate f(1). Since f(2) is known and f(x-1) will become f(1) after f(2-1) is simplified to f(1).

17 = f(2-1)+2*2+1

f(2-1) = 17 - 5

f(1) = 12

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