Easy question but plz help !
Which exponential function describes the given sequence ?
3 , 9 , 27 , 81..
A) y= (-1/3)^x
B) y= 1/3^x
C) y=(-3)^x
D) y=3^x

Question

Easy question but plz help ! 
Which exponential function describes the given sequence ?
3 , 9 , 27 , 81..
A) y= (-1/3)^x
B) y= 1/3^x
C) y=(-3)^x
D) y=3^x

anonymous · Answer

ok first look at the sequence, how does 3 get to 9? what happened to 3?

anonymous · Answer

It was multipled by 3 ..

anonymous · Answer

yes and 9 to 27 ?

anonymous · Answer

Also multipled by 3

anonymous · Answer

So it would be d ?

anonymous · Answer

and 27 to 81 is also multiplied by 3

anonymous · Answer

Yeah I get it now , it's d , thanks

anonymous · Answer

now to make things easier, you can start look at your answer choices, the y value is the outcomes like 3, 9, 27, 82, ...... etc and the x value is the number of the 3,9,27.....etc like 3 is the fist number in the sequence and 9 is the second. you can eliminate 2 already. do you which 2?

anonymous · Answer

sorry didn't see your reply but d is correct

anonymous · Answer

Thanks again !

thesmartone · Answer

Please close this post if you have gotten help @esmee❤️ 

Ik you are on the app and it lets you make multiple posts without closing it .-.