Question

Functions and inverses
If ƒ(x ) = 3x + 1 and ƒ ^-1 = x-1/3
then ƒ(2) =
1/3
1
7

Answer 1

Any help would be great.

Answer 2

f(2) means you just replace the x's in the function named f above

Answer 3

you have f(x)=3x+1
you want to find f(2)
replace the x's with 2

Answer 4

7 or 1/3

Answer 5

?

Answer 6

well you are to find f(2) not f^(-1)(2)

Answer 7

so what do you think?

Answer 8

So 7

Answer 9

yes

Answer 10

3*2+1= 7

Answer 11

Thanks.

Answer 12

np

Answer 13

Can I check 1 more?

If ƒ(x ) = 3x + 1 and ƒ ^-1 = x-1/3
then ƒ ^-1(7) =
22
2
-2

Answer 14

7-1=6/3=2

Answer 15

is that really (x-1)/3 or is it x-1/3
judging by what f is I believe f^-1(x)=(x-1)/3
and if so f^-1(7)=(7-1)/3=6/3=2 is right

Answer 16

x-1 is over 3

Answer 17

or divided by 3

Answer 18

which ever terminology you prefer