Respuesta :

amna04352

Answer:

Option 2

Step-by-step explanation:

y = ¼x + 10

Make x the subject

¼x = y - 10

x = 4y - 40

Interswitch variables

f^-1(x) = 4x - 40

cutegirl1000

switch x and y (or f(x)) and then solve for y and you get the inverse!

x = 1/4y + 10

x - 10 = 1/4 y

4x - 40 = y

Answer: f^-1(x) = 4x - 40

Hope this helps :)

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