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math456
 3 years ago
I need help, anyone?
math456
 3 years ago
I need help, anyone?

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Kreshnik
 3 years ago
Best ResponseYou've already chosen the best response.0do you have a graph yet? ... I can get you one !

math456
 3 years ago
Best ResponseYou've already chosen the best response.0dw:1333410736966:dw yea its like this!

math456
 3 years ago
Best ResponseYou've already chosen the best response.0so for Q.2 we have to graph the inverse, right?

Kreshnik
 3 years ago
Best ResponseYou've already chosen the best response.0is this what is required at option a)?? ...I don't get it well enough (I'm not American/British :S )

Kreshnik
 3 years ago
Best ResponseYou've already chosen the best response.0two lines... f(x)=4x8 and y=x

math456
 3 years ago
Best ResponseYou've already chosen the best response.0umm we have to find inverse first which is x+8/4=y and graphing it gives me dw:1333411085687:dw

Kreshnik
 3 years ago
Best ResponseYou've already chosen the best response.0\[\Large f^{1}(x) =\frac{1}{f(x)}\] ... so that should be . .\[\LARGE f^{1}(x)=\frac{1}{4x8}\] is it??

math456
 3 years ago
Best ResponseYou've already chosen the best response.0and ur graph is answer to part 5

math456
 3 years ago
Best ResponseYou've already chosen the best response.0umm our teacher tell us that u switch letters first & then solve for y to get the inverse..

math456
 3 years ago
Best ResponseYou've already chosen the best response.0do u know how to do Q.3?

Kreshnik
 3 years ago
Best ResponseYou've already chosen the best response.0I know it like I wrote it !! O_O ... show me your way then!

math456
 3 years ago
Best ResponseYou've already chosen the best response.0i already told u inverse seems like x+8/4=y

math456
 3 years ago
Best ResponseYou've already chosen the best response.0what does it mean to test the symmetry accross the line y=x?

Kreshnik
 3 years ago
Best ResponseYou've already chosen the best response.0I don't know it either... but tell me, how do you get x+8/4=y ... show me steps I want to see them if it's possible ! O_O

math456
 3 years ago
Best ResponseYou've already chosen the best response.0y=f(x)=4x8 x=4y8 (switched) x+8/4=y (solve for y)

Kreshnik
 3 years ago
Best ResponseYou've already chosen the best response.0still dizzy... I don't know.. OK now tell me if we have \[\LARGE f(x)=\frac{1x}{1+x}\] how does f^{1} go?

slaaibak
 3 years ago
Best ResponseYou've already chosen the best response.1the inverse of f(x) is not 1/f(x)

Kreshnik
 3 years ago
Best ResponseYou've already chosen the best response.0ok I guess I'm wrong, but I want to learn it.. :(

slaaibak
 3 years ago
Best ResponseYou've already chosen the best response.1To find the inverse, switch x and y, and write in terms of y.

Kreshnik
 3 years ago
Best ResponseYou've already chosen the best response.0well then @math456 is right !!...

math456
 3 years ago
Best ResponseYou've already chosen the best response.0f(x)=1x/1+x x=1y/1+y x(1+y)=1y x+xy=1y y=1x+xy

slaaibak
 3 years ago
Best ResponseYou've already chosen the best response.1y = (1  x)/(1 + x) Switching the x and y: x = (1y)/(1+y) x + xy = 1  y y(1+x) = 1x y = (1x)/(x+1)

slaaibak
 3 years ago
Best ResponseYou've already chosen the best response.1with which number do you need help with?

math456
 3 years ago
Best ResponseYou've already chosen the best response.0i mean like for a we hv to reflect the graph of f across the diagonal line y=x, how?

slaaibak
 3 years ago
Best ResponseYou've already chosen the best response.1draw the y=x line and flip the line over it

slaaibak
 3 years ago
Best ResponseYou've already chosen the best response.1I mean, flip it over the line

math456
 3 years ago
Best ResponseYou've already chosen the best response.0dw:1333412317919:dw like this?

math456
 3 years ago
Best ResponseYou've already chosen the best response.0fliping it will bedw:1333412361021:dw

slaaibak
 3 years ago
Best ResponseYou've already chosen the best response.1That's y=x yes. Best way to see it is to draw the line, then folding the paper over y=x and to see how the graph reflects

slaaibak
 3 years ago
Best ResponseYou've already chosen the best response.1Noo... you flip the function f(x) over the line y=x.

math456
 3 years ago
Best ResponseYou've already chosen the best response.0so for Q2a we hv to flip over the f(x) ?

math456
 3 years ago
Best ResponseYou've already chosen the best response.0dw:1333412477378:dw so its gona be like this?

math456
 3 years ago
Best ResponseYou've already chosen the best response.0how about 2b? and question 5 ask the same thing as 2a, right?

slaaibak
 3 years ago
Best ResponseYou've already chosen the best response.1noooo dw:1333412696801:dw

slaaibak
 3 years ago
Best ResponseYou've already chosen the best response.1question 2 b: get a few points (x,y) then change them to (y,x) and draw them

math456
 3 years ago
Best ResponseYou've already chosen the best response.0and 5 is dw:1333412939248:dw ?

slaaibak
 3 years ago
Best ResponseYou've already chosen the best response.1Not exactly sure what they mean..

math456
 3 years ago
Best ResponseYou've already chosen the best response.0so for 2b i got a graph like this dw:1333413313588:dw

slaaibak
 3 years ago
Best ResponseYou've already chosen the best response.1... I honestly don't know how you got that. Look at my graph. Thats how f, y=x and f^1 looks like

math456
 3 years ago
Best ResponseYou've already chosen the best response.0that was for f(x) and if I reflect it, i'll get dw:1333413484096:dw
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