Juliana has created the function f(x) = the quantity of 3x plus 2, divided by 4 to represent the cost of texting on her current plan, where x represents the number of texts. juliana discovers that, using the inverse function to solve for x = 24, she can predict how many texts she can use for $24

Let

x-------> the number of texts

f(x)------> the cost of texting on Juliana's current plan

we know that

Step

Find the inverse function of f(x)

Let

y=f(x)

exchange the variables x for y and  y for x

Clear variable y

Let

------> this is the inverse function

where

x ------> represent the cost

f(x)^{-1}------> the number of texts

Solve for

substitute

therefore

the answer is

  answer:

  write 548 as 500 + 40 + 8. multiply each addend by 5. then add the three products to get 2,740.