Question

Let f(x) = -4x + 7 and g(x) = 10x - 6, find f(g(x)).

-40x + 24

-40x + 31

-40x + 64

-40x + 70

Answer 1

Do you know how to start it?

Answer 2

no

Answer 3

Alright g is on the inside, so you are going to put the function g, into the x of the function f

Answer 4

ok

Answer 5

Does that make sense? Are you able to do it now?

Answer 6

i dont even know what im looking at

Answer 7

haha alright here,

-4(10x-6) + 7

I put g(x) into f(x) now just solve

Answer 8

simplify not solve

Answer 9

how do i do that?

Answer 10

first analyze it the question is find f(g(x)) you already know that f(x) = -4x + 7 and g(x) = 10x - 6...but in the question there is no f(x) but there is just an f so what would you do to find f

Answer 11

simplify? just distribute the parenthesis

Answer 12

no not yet

Answer 13

yes you would, from what I said he would

Answer 14

I already went through putting the function g into the function f

Answer 15

you would take away the x from the equation so it would be f=-4+7

Answer 16

i think

Answer 17

;__; what do i do

Answer 18

no you would not

Answer 19

listen to me, you have f(x) = -4(10x-6) + 7

Answer 20

i'm sorry i'll try to find a link that can help you..kk..first what kind of problem is this

Answer 21

algebra

Answer 22

then you just simplify

f(x) = -4(10x-6) + 7
-40x + 24 + 7

Answer 23

i mean like equation....ect.

Answer 24

f(x) = -40x + 31, and that is your answer

Answer 25

so b

Answer 26

lets have two opinions first kk

Answer 27

No it is b I promise you

Answer 28

im going to cry

Answer 29

jasmineflvs I came up with one of the answers, you told him to eliminate the x which you DO NOT DO. I promise you it is b, I can show you again if you like

Answer 30

no lets get two opinions and dont cry

Answer 31

Why does he need two opinions? alright thebroski I want you to work it out yourself, start by putting g(x) into the x in f(x)

Answer 32

f(x) = -4x + 7 and g(x) = 10x - 6, so

g(x) goes into

f(x = -4(g(x) goes here) + 7

Answer 33

just a sec kkk i'll get it and if you were rigght ill give you a medal..kk

Answer 34

thats racists

Answer 35

???

Answer 36

how?? may i ask

Answer 37

.just a sec ((kkk))) i'll get it and if you were rigght ill give you a medal..kk

Answer 38

??? still dont understand why it is racist

Answer 39

Let f(x) = 2x + 2. Solve f-1(x) when x = 4.

1

3

4

10

Answer 40

let me guess you got the answer

Answer 41

no im just terrible at math

Answer 42

f^-1(x) is an inverse equation

Answer 43

that's okay

Answer 44

you need to switch the spots of x and y in the equation given and the solve for y, make sense

Answer 45

?

Answer 46

sorry i can't help you on functions i am behind in Algebra...I'm in 10th grade and I'm still in Algebra 1...sorwie

Answer 47

im in 10th to but math is not my subject i dont understand any of it except 2+2 thats all i understand

Answer 48

lolz

Answer 49

i'm getting a friend to help you on this one

Answer 50

@sasogeek @Hero @jim_thompson5910 @cwrw238 plz help him

Answer 51

ok got the answer

Answer 52

here f(10x-6)=31-40x

Answer 53

wut

Answer 54

thats the answer

Answer 55

oh right

Answer 56

sorry sir if u want help be more nicer

Answer 57

what do you mean

Answer 58

.Let f(x) = 2x + 2. Solve f-1(x) when x = 4.

1

3

4

10

Answer 59

thebroski, if you're not going to put some effort into understanding the concept of the answer, no one can really help you. stop posting questions with multiple choice answers if you're not ready to learn

Answer 60

dont say any thing without thinking this is a Moderator

Answer 61

i am trying to put effort into this its just that i have a problem with understanding things im just kinda slow.

Answer 62

btw i really dont care if ur the moderator it doesnt give you the right to ban someone because they need help with questions

Answer 63

i'm not going to ban u for asking for help, in fact i'll help you if i can. it just doesnt seem like u really want the help though. sounds like u just want the answer cos it's quite a long thread and u still don't get it... reposting the question with the possible answers doesn't get u so far on this site. be patient, and try at least, to understand :)

Answer 64

ok

Answer 65

ya i could also help u

Answer 66

Tango Hotel Alpha November Kilo Yankee Oscar Uniform

Answer 67

what?

Answer 68

it means thank you

Answer 69

no problem ill be leaving now bye