What does this equation mean? [Exponentials]

[Cee]

So I'm trying to come up with 2 exponential function for a question, one we do by hand and one with technology. So on graphmatica, it came up with: y = exp(0.0211x - 28.95) which I have no idea what it means.

I thought the equation was supposed to be in y= a*b^x
Is it possible to change it to the y= a*b^x form?

Thanks.

 

[jedishrfu]

Yes recall your exponential algebra a^(x + y) = a^x * a^y

And

y = e ^ ( a * b ) = ( e ^ a ) ^ b

With these you should easily be able to convert it.

 

[Mark44]

So I'm trying to come up with 2 exponential function for a question, one we do by hand and one with technology. So on graphmatica, it came up with: y = exp(0.0211x - 28.95) which I have no idea what it means.

I thought the equation was supposed to be in y= a*b^x
Is it possible to change it to the y= a*b^x form?

"exp" means e to some power. Are you familiar with the number e, which is about 2.718?

exp(0.0211x - 28.95) means e^{0.0211x - 28.95}