Please try to explain the answer.
Which of the following functions is equivalent to the function below?

Select two that apply. f(x) = 3^(2x+1)

g(x )= 3 ⋅ 9^x

g(x )= 3^(2x) + 3

g(x )= 27^x

g(x) = 2 ⋅ 3^(x) + 1

g(x )= (1/3)^(−(2x+1))

g(x) = 9^(x) + 1

first one is right

Step-by-step explanation:

part a

x     y

0     8

1     7.5

2     7

3     6.5

4     6

5     5.5  

for every hour i deducted .5 inches from the length of the candle

part b

it is a function because for every x value there is only one y value

part   c

for every x value there is only one y value

x       y

0       8

1       7.6

2       7.2

3       6.8

step-by-step explanation:

for this pair of functions g(x)=x-2 and f(x)=|x| is (g o f)(a)= |a| -2

step-by-step explanation:

g(x)=x-2

f(x)=|x|

(g o f)(a)=?

(g o f)(x)=g(f(x))

(g o f)(x)=g(|x|)

(g o f)(x)=|x|-2

(g o f)(a)=|a|-2