Question

PLEASE HELP?

Answer 1

Looks like we should review question number 5 as well?

Answer 2

@Johnbc what?

Answer 3

@mathstudent55

Answer 4

@iPwnBunnies

Answer 5

For a function f(x) and its inverse f^-1(x) the domain and range are switched.

So that the domain of one is the range of the other
and the range of one is the domain of the other.

Answer 6

okay, that helps! what about for parts A and B (in the screenshot above)

Answer 7

and so that means D and E are true yes?

Answer 8

Correct D and E are true.

As for A and B I am unsure about,

If f(x) = x+2
then f^-1(x) =x -2

Then f^-1(f(x)) = (x+2)-2 = x

And f(f^-1(x)) = (x-2)+2 = x

Answer 9

So it would seem that they are also both true for my scenario.

Answer 10

so you are saying, a b d and e are true?

Answer 11

D and A yes, as for A and B I would say yes but not entirely sure.

Answer 12

D is the correct answer becuase when we put f(x) then we get f^-1(y)
and also E is correct but it does not make sense therefore D is the correct answer

Answer 13

E does make sense when you are given, "Check all that apply"

Answer 14

A and B are right as they are the formulas to determine if function is inverse of another function. Both must be true if one is inverse of another

Answer 15

Thank you @nelsonjedi

Answer 16

THANKS EVERYONE! then correct answers are: A, B, D, and E