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PLS HELP

Simplify the function f(x) =
3x
(81)
4
Then determine the key aspects of the function.
The initial value is
The simplified base is
The domain is
The range is

PLS HELP Simplify the function f(x) = 3x (81) 4 Then determine the key aspects of-example-1
User Alxrb
by
7.2k points

2 Answers

4 votes

Answer:

Explanation:

This follows the form


y=a(b)^x

where a is the initial value and b is the base with the exponent. Using that information, we can see that the initial value in our function is 1/3. Simplifying the base will take some work. Let's first rewrite this is a radical:


81^{(3x)/(4) }=\sqrt[4]{81^(3x) }

Now let's break up 81 into its factors. 81 is 9*9 which is 3*3*3*3. Therefore,


81=3^4

We will use that as a simplification:


\sqrt[4]{(3^4)^(3x)} which simplifies to


\sqrt[4]{3^(12x)}

Rewriting that as an exponent looks like this:


3^{(12x)/(4)} which simplifies to


3^(3x)

That's the answer for the second part. The whole exponential equation now is


f(x)=(1)/(3)(3)^(3x)

The domain for an exponential function is all real numbers and the range is

y > 0

User Promit
by
7.9k points
6 votes

Answer:

1/3

27

all real numbers

y > 0

ON EDGE

Explanation:

User Nicholas G Reich
by
6.5k points