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Mathematics 17 Online
OpenStudy (anonymous):

given that (2,5) is on the graph of f(x) the corresponding point for the function f(x-2) plase help i do not know how to do

OpenStudy (dan815):

f(x-2) will shift all the points 2 to the right,

OpenStudy (dan815):

so, (2,5)---> (2+2,5) = (4,5)

OpenStudy (dan815):

This is one way to think about it, however I don't think its really the right way. It is not the corresponding point that changes, this is just a new function

OpenStudy (anonymous):

@dan815 thanks can you help me more on these i have no clue how to do

OpenStudy (dan815):

Okay I can take a look at it, what do you need clarification on?

OpenStudy (anonymous):

given that (-6,-5) is on the graph of f(x) find the corresponding point for the function f(x-4)

OpenStudy (dan815):

same kind of question

OpenStudy (dan815):

What do you think it is?

OpenStudy (anonymous):

yup i still don't know how to do

OpenStudy (dan815):

Did you read my earlier comments?

OpenStudy (anonymous):

ya but still do not get it

OpenStudy (dan815):

if f(x-2) shifts the graph 2 to the right.. f(x-4) shifts the graph ___ to the ____?

OpenStudy (anonymous):

I have no clue bro

OpenStudy (dan815):

just look at the numbers, there isnt much go off on there

OpenStudy (dan815):

Take a guess

OpenStudy (anonymous):

-8,-5? idk

OpenStudy (dan815):

... dude i mean this sentence..

OpenStudy (dan815):

fill in the blanks

OpenStudy (dan815):

if f(x-2) shifts the graph 2 to the right.. f(x-4) shifts the graph ___ to the ____?

OpenStudy (anonymous):

2 to the right?

OpenStudy (dan815):

f(x-'2') the -2 is making it go 2 to the right..

OpenStudy (dan815):

so a -4 there will do what?

OpenStudy (anonymous):

go to 4

OpenStudy (dan815):

... go to 4?

OpenStudy (dan815):

do you mean 4 to the righ

OpenStudy (anonymous):

yes

OpenStudy (dan815):

Okay now going left or right means only a change in the x variable

OpenStudy (anonymous):

how do you know if it goes to he right or left

OpenStudy (dan815):

(x,y)=(-6,5) ----> only change the x variable by 4

OpenStudy (dan815):

because it is f(x-4)

OpenStudy (dan815):

if it was f(x+4) then it would be 4 to the left

OpenStudy (anonymous):

so is it -2,5?

OpenStudy (dan815):

yes

OpenStudy (anonymous):

thas not right lol

OpenStudy (dan815):

okay

OpenStudy (dan815):

because u didnt put a -5 on the 5

OpenStudy (anonymous):

ok can you help me on onemore just so i can see i undestand?

OpenStudy (dan815):

okay

OpenStudy (dan815):

Tell my our solution and how you go it and i will see if you are doing it right, I will return to check.

OpenStudy (anonymous):

given that (5,-6) is on the graph of f(x) find the corresponding point for the function f(x+4)

OpenStudy (anonymous):

is it 9,-6?

OpenStudy (anonymous):

no wait is it 1,-6 @dan815

OpenStudy (dan815):

yes good job

OpenStudy (dan815):

it will make it shift 4 to the left so 5-4,-6= 1,-6

OpenStudy (anonymous):

really omg thanks man i have been suck on that stuff for a while

OpenStudy (dan815):

sure no problem, you can get more of an understanding on what is really going on, when you get more familiar with functions.

OpenStudy (anonymous):

bro thanks so much i owe you so much for helping me

OpenStudy (dan815):

no problem, you are welcome!

OpenStudy (anonymous):

@dan815 can you help again lol?

OpenStudy (anonymous):

given that (-9,-5) is on the graph of f(x) find the corresponding point for the function f(3x)

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