Question

Help with a few algebra questions? (:

Answer 1

\[f(x)=7\times0.32^{x}\]

Answer 2

go on?

Answer 3

\[g(x)=1.3\left( \frac{ 1 }{ 4 } \right)^{x}\]

Answer 4

what is the question?

Answer 5

Oh tell whether the function represents exponential growth or exponential decay, Identify the growth or decay factor

Answer 6

Where a = initial amount
b = growth/decay factor
x = time
y = ending amount
Growth
When a > 0 and b > 1,
the function models growth.
(b is called the growth factor)
(a represents the initial amount)


Decay
When a > 0 and 0 < b < 1,
the function models decay.
(b is called the decay factor)
(a represents the initial amount)

Answer 7

I'm so confused

Answer 8

When the exponent is negative that is decay
https://www.wolframalpha.com/input/?i=y+%3D+10^-x

When the exponent is positive that is growth
https://www.wolframalpha.com/input/?i=y+%3D10^x

Answer 9

make sense?

Answer 10

Not really. :/

Answer 11

The formula for exponential growth is \[y=a*b^x\]So in your first question you have \[f(x)=7*.32^x\]so your a = 7 your b = .32

Now for exponential GROWTH your "a" value must be greater than 0 so

a > 0

and for your "b" value for exponential growth it must be greater than 1 so

b > 1

But for exponential DECAY

a > 0 and b is between 0 and 1

So in your first question you have a= 7 which is greater than 0 but your b value is 0.32 which is between 0 and 1 therefore you have exponential DECAY

Try your other question using this same principle and tell me what you think it is

Hope that helped