Question

Let f(x) = 9x - 2 and g(x) = -x + 3. Find f(g(x)).

Answer 1

-9x - 2

-9x + 5

-9x + 25

-9x + 27

Answer 2

IS IT A ?

Answer 3

@Faceomo @eric_d

Answer 4

@kirbykirby is here

Answer 5

OH I DIDNT KNOW SORRY

Answer 6

\(f(\color{red}{x})=9\color{red}{x}-2\)
\(g(x)=-x+3\)

\(f(\color{red}{g(x)})= 9(\color{red}{g(x)})-2=9(\color{red}{-x+3})-2\)

Answer 7

Do you see how that works? Whatever is in between f ( ...) , plug it where you see it in the function.

In f(x) = 9x + 2... whatever is in ( ) before f, you substitute in your function.

so if you have f(g(x)), you substitute wherever you see "x" with "g(x)"

Answer 8

KIRBY DO I DO THE ALGEBRA STILL ?

Answer 9

yes, you must simplify the answer in order to get one of the choices you are given

Answer 10

THANKS U HAVE BEEN A LOT OF HELP :}

Answer 11

your welcome =]

Answer 12

@fateal @Alfa_female

Answer 13

No, if you plug in f into the g, that would be \(g(f(x))\)

Answer 14

KIRBY I STILL DONT GET IT

Answer 15

AND ITS PISSING ME OFF

Answer 16

Did you understand how I got this? \[ f(\color{red}{g(x)})= 9(\color{red}{g(x)})-2=9(\color{red}{-x+3})-2\]

Answer 17

I THINK SO

Answer 18

ok i honestly thought i could help you buti cant i have done these as much and frankly not to this extent sorry @taylor12344

Answer 19

haven't

Answer 20

i can help but this computer is killing me :/ slow as f >.<

Answer 21

OK