ameliabingham294
ameliabingham294 ameliabingham294
  • 22-01-2020
  • Mathematics
contestada

if f(X) =2x/7+4 ,which of the following is the inverse of f(x)?

A.f¹(x)=2(x+4)/7
B.f¹(x)=2(x-4)/7
C.f¹(x)=7(x-4)/2
D.f¹(x)=7(x+4)/2

Respuesta :

texaschic101
texaschic101 texaschic101
  • 22-01-2020

Answer:

Step-by-step explanation:

f(x) = (2x / 7) + 4.....change f(x) to y

y = (2x / 7) + 4.......switch ur x and y and solve for y

x = 2y/7 + 4....subtract 4 from both sides

x - 4 = 2y/ 7.....multiply by 7

7(x - 4) = 2y....divide by 2

7(x - 4) / 2 = y ........answer C

Answer Link
karsyncox12 karsyncox12
  • 14-09-2020

Answer:

the answer is c

Step-by-step explanation:

Answer Link

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