Please help me find the function? and Explain why ?
(x , y)
(1 , 1)
(2 , 3)
(3 , 9)
(4 , 27)

Question

Please help me find the function? and Explain why ?
(x , y)
(1 , 1)
(2 , 3)
(3 , 9)
(4 , 27)

anonymous · Answer

This is tough to explain. I see a pattern of powers of 3. 3^0=1, 3^1=3, 3^2=9, 3^3=27

To write an expression it would be 3^x-1 = y

anonymous · Answer

This problem doesn't work like the last, because if you try it by difference there isn't a consistent one.

anonymous · Answer

$$y=3^{x-1}$$

anonymous · Answer

I'm trying to think of a systematic way to approach this problem....

anonymous · Answer

No consistent difference told me it was either a constant to the power of x

anonymous · Answer

yeah this problems confusing haha but i get what you getting at. but If this pattern were to continue,  what would the 7th ?

anonymous · Answer

I just started thinking about the numbers and they were all divisible by 3.

anonymous · Answer

the 7th would be 3^(7-1). I don't have a calculator, whatever 3^6 is

anonymous · Answer

okay haha thanks !complicated but thank you

anonymous · Answer

You're Welcome