Rewrite the function y = (3.1)(2/3)^-x in the form y = ab^x.

Question

ilovepuppieslol · Answer

@imqwerty

refrac532 · Answer

That doesn't really help @ILovePuppiesLol

mathmale · Answer

Task:  write y = (3.1)(2/3)^-x in the form y = ab^x
1.  Focus on the exponential function part: $$(\frac{ 2 }{ 3 })^{-x}$$

mathmale · Answer

Please use either Equation Editor or the Draw utility to present the exponentiation properly:   See my expression immediately above, or |dw:1455984401963:dw|

mathmale · Answer

You are asked to write this with a positive exponent instead of a negative one.
There are several ways in which you could accomplish that.  One would be to simply invert (turn upside down) the (2/3) and then use +x as exponent instead of -x.  

Try this, please.  Share your result.

refrac532 · Answer

Would the answer be$$y=(3.1)(\frac{ 3 }{ 2 })^x$$

refrac532 · Answer

I don't know, I feel like that's wrong, but I think it's right...

refrac532 · Answer

@mathmale

anonymous · Answer

correct.

refrac532 · Answer

Alright, thanks!