SOLUTION: Help we have been working on this question all day, please help A periodic function has a period of 6. If f(3)=-1 and f(8)=5 Determine f(20) and f(-9)

Question 1132994: Help we have been working on this question all day, please help
A periodic function has a period of 6. If f(3)=-1 and f(8)=5 Determine f(20) and f(-9)
Answer by greenestamps(13214) (Show Source): You can put this solution on YOUR website!

If a function is periodic with period 6, then if it is given that f(3) = -1, then the function value is also -1 for any input value that is any multiple of 3 less than or greater than 3. That is,

..., f(-15) = -1, f(-9) = -1, f(-3) = -1, f(9) = -1, f(15) = -1, ...

So there is the answer to one of your questions.

In a similar manner, what do you know about the values of f(8) and f(20)?

-----------------------------------------------
Added in response to reader's question...

Yes. 20 = 8+2(6), so f(20) = f(8) = 5
RELATED QUESTIONS
A periodic function has a period of 6. If f(3)=-1 and f(8)=5 Determine f(20) and f(-9) (answered by ikleyn)

Hi, my name is michelle. im working on a midterm review that i have tomorrow at 12. im... (answered by ad_alta)

I need help solving this equation, we have been working on factoring and I can't seem to... (answered by Theo)

Hello, I need help with this question. Detailed working out would be greatly... (answered by htmentor)

I have been working on this math problem and I can't figure it out. I was wondering if... (answered by stanbon)

Can someone please help me I'm going crazy here I've been working on this for 3hr still... (answered by checkley77)

Please help me. I have been working on this problem with a classmate of mine and we cant... (answered by stanbon,Edwin McCravy)

Please help me create this proof using the 18 rules of inference. I have been working on... (answered by jim_thompson5910)

I'm sorry if this isnt a quadratic equation...... we havent been doing algebra long so i... (answered by Mathtut)