What is the inverse of the function f(x) = 2x + 1?

f(x) = 2x + 1

Replace f(x) with y

y = 2x + 1

Switch x with y and y with x.

x = 2y + 1

Now solve for y. Subtract 1 from both sides.

x - 1 = 2y

Divide both sides by 2

(x - 1) / 2 = y

Replace y with f^-1(x)

f^-1(x) = (x - 1) / 2 is the inverse

Step-by-step explanation:

y = 2x + 1

x = 2y + 1

2y + 1 = x

2y = x - 1

y = x/2 - 1/2

f^-1(x) = x/2 - 1/2

vbbv

step-by-step explanation:

total amount of money that he should pay if he has not used his duty free exemption is $98

step-by-step explanation:

given a united states citizen returning to the states declares the following items at the customs office: 3 shirts at $8.50 each 2 dresses at $27.50 each 1 pair of gold cuff links at $17.50 per pair. we have to find how much he pay

cost of 3 shirts if one cost at $8.50 is

cost of 2 dresses if one cost at $27.50 is  

cost of 1 pair of gold cuff at $17.50

so, total amount of money that he should pay if he has not used his duty free exemption is   $25.5+$55+$17.50=$98