Find the annual percent increase or decrease that y = 0.35(2.3)x models. (1 point)
A.230% increase
B.130% increase
C.30% decrease
D.65% decrease

Question

Find the annual percent increase or decrease that y = 0.35(2.3)x models.  (1 point)
A.230% increase
B.130% increase
C.30% decrease
D.65% decrease

anonymous · Answer

@hartnn help? lol

hartnn · Answer

u said that was last Question! 
lol :"P

hartnn · Answer

i was just kidding....

anonymous · Answer

lol i know sorry but then i just wanted to get this outta the way. I only have 4 questions this time i promise

hartnn · Answer

If x measures time (in years) then the value of y this year is 0.35·2.3^x, and next year it's 0.35·2.3^(x+1)
so, can u calculate annual increase from this ?

anonymous · Answer

Please, please please just give me a letter? I beg you!

hartnn · Answer

sorry, that i cannot.
its against CoC here.

hartnn · Answer

u just subtract 0.35·2.3^x from  0.35·2.3^(x+1)

anonymous · Answer

-_-

hartnn · Answer

its not difficult really.....

anonymous · Answer

is that a x sign in between 0.35 and the 2.3^x ?

hartnn · Answer

and i believe the Question is $y=0.35 (0.23)^x$
right ? 
and yes.

hartnn · Answer

$\% increase=(final-initial)*100/initial $
here, initial is =0.35·2.3^x
final =0.35·2.3^(x+1)

hartnn · Answer

just plug in values, and u get the answer easily.

anonymous · Answer

i got it thanks. sorry i got that one an then just started doing the other ones. thank you

hartnn · Answer

what u got it as ?

hartnn · Answer

so that i can verify..

anonymous · Answer

130

anonymous · Answer

b

anonymous · Answer

130% is correct in this instance.  Consider the percent increase from 0.35(2.3)^1 to 0.35(2.3)^2

hartnn · Answer

yes, its correct

anonymous · Answer

For growth functions, the easiest way to determine the growth rate is to consider it of the form:

y = a(1 + r)^x, where r is the percent increase