UserNotFoundd UserNotFoundd

21-07-2021
Mathematics

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PLS HELP!
If f(x)= x+3/4 what is the equation for f–1(x)?

A) f–1(x) = 4(x + 3)

B) f–1(x) = 4x - 3

C) f–1(x) = 4(x - 3)

D) f–1(x) = 4x + 3

Respuesta :

wegnerkolmp2741o wegnerkolmp2741o

21-07-2021

Answer:

f^-1(x) = 4x-3

Step-by-step explanation:

f(x) = (x+3)/4

y = (x+3)/4

Exchange x and y

x = (y+3)/4

Solve for y

4x = y+3

Subtract 3

4x-3 = y

The inverse

f^-1(x) = 4x-3

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