Question

Can someone explain to me how I'm supposed to read this?

Answer 1

this is easy, where's the problem? These are functions.

Answer 2

well can you walk me through the first one so i know how to do the rest?

Answer 3

Well okay. Can you tell me what f of 3 is from the table?

Answer 4

2?

Answer 5

No, see the x table, now see what is f(x) in that row.

Answer 6

f(1) = 4
f(2) = 3
like that.

Answer 7

so its 5

Answer 8

Yep :)

Answer 9

and then?

Answer 10

So that'd then become g(5). What is g(5) in that table?

Answer 11

4

Answer 12

So we can say: \(g(f(3)) = 4\) :D

Answer 13

oh ok well what happens when we get into the negatives?

Answer 14

That actually is the inverse function of x.

Answer 15

ok so can we fo f. together?

Answer 16

In the inverse function of f(x), you do the opposite.

Answer 17

*do

Answer 18

You see the f(x) table and then see the values in x table.

Answer 19

For example,

\(\Large \color{Black}{\Rightarrow f^{-1}(4) = 1 }\)

Answer 20

so the answer for f is 2?

Answer 21

f-1(5) = 3

Answer 22

g-1(4) = 5

Answer 23

i was talking about letter f but ya i think i got it

Answer 24

and is c 1?

Answer 25

Yes.

Answer 26

You go from the range to domain in inverse functions.

Answer 27

f(f(3) = f(5) = 1

Answer 28

I think you're getting the idea now.

Answer 29

ok i get it. and on e do i just substitute a;; the x's for 2?

Answer 30

*all

Answer 31

See the g(x) table, where do you find 4? If you do then what is the value of x?

Answer 32

wait on what letter?

Answer 33

In the g(x) table, we see 4 sittin right there, and the x value for g(4) is 5. so g-1(4) = 5

Answer 34

Let me explain. x is the domain(the input) and range is f(x) or the range or the output.

Answer 35

ya, are you talking about the last question? the h(x) one?

Answer 36

If it is g(2) for g(x), then all x's will become 2.

Answer 37

so it would read -3f(3)-2g(2)+6-6

Answer 38

Yes :)

Answer 39

Then isolate g(2)

Answer 40

final answer is -25?

Answer 41

Check it.

Answer 42

From the table I mean

Answer 43

so its wrong?

Answer 44

I'm too lazy to solve lolol

Answer 45

ok ill just go w/ -25

Answer 46

Okay