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What is the inverse of the function f(x) = 4x + 8?

h(x) = x – 2
h(x) = x + 2
h(x) = x – 2
h(x) = x + 2

User Rojomoke
by
8.8k points

2 Answers

3 votes

Final answer:

The inverse of the function f(x) = 4x + 8 is h(x) = (x - 8) / 4.

Step-by-step explanation:

The inverse of the function f(x) = 4x + 8 can be found by switching the x and y variables and solving for y. So, we have:

x = 4y + 8

Now, we rearrange the equation to isolate y:

x - 8 = 4y

y = (x - 8) / 4

Therefore, the inverse function is h(x) = (x - 8) / 4.

User Samjudson
by
7.5k points
3 votes

we have


f(x)=4x+8

Step 1

Let


y=f(x)


y=4x+8

Step 2

exchanges the variable x for y and the variable y for x


x=4y+8

Step 3

Isolate the variable y


4y=x-8


y=(1)/(4)x-2

Step 4

Let


h^(-1)(x)=y


h^(-1)(x)=(1)/(4)x-2 ------> the inverse function

therefore

the answer is


h^(-1)(x)=(1)/(4)x-2


User Dhaval Purohit
by
9.0k points