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45 votes
45 votes
Which represents the inverse of the function f(x) =4x?

User Teddy K
by
2.8k points

2 Answers

20 votes
20 votes

Let's see

Let y=f(x)

  • y=4x

Intechange x and y

  • x=4y

Find y

  • y=x/4

The inverse is y=x/4

Graphs attached

Which represents the inverse of the function f(x) =4x?-example-1
User Xamenrax
by
3.0k points
12 votes
12 votes

Answer:


\sf f^(-1)(x)=(x)/(4)

Explanation:

The inverse of a function is the reflection of the function in the line y = x

To find the inverse of a function:

Set the function to y:

⇒ y = 4x

Make x the subject:


\sf \implies x=(y)/(4)

Change x to
\sf f^(-1)(x) and y to x:


\sf \implies f^(-1)(x)=(x)/(4)

Which represents the inverse of the function f(x) =4x?-example-1
User Jdsumsion
by
2.6k points
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