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saifoo.khan
 one year ago
Best ResponseYou've already chosen the best response.0Do you know how to find an inverse?

hartnn
 one year ago
Best ResponseYou've already chosen the best response.1ask if you still need help.

abbie1
 one year ago
Best ResponseYou've already chosen the best response.0I'm still confused..what am I finding the inverse to in my problem?? @hartnn

hartnn
 one year ago
Best ResponseYou've already chosen the best response.1ok, let y=7x13 now to find the inverse, isolate x =... ? then just replace 'x' and 'y' (you can replace before isolating also.)

abbie1
 one year ago
Best ResponseYou've already chosen the best response.07x=13y?? why would there be a y in there??

abbie1
 one year ago
Best ResponseYou've already chosen the best response.0and then divide the whole thing by 7, but they're going to be fractions.

hartnn
 one year ago
Best ResponseYou've already chosen the best response.1y= 7x13 add 13 to both sides, then divide by 7 [Let there be fractions, its ok]

abbie1
 one year ago
Best ResponseYou've already chosen the best response.0So basically you set the problem equal to 7x13, and either make it equal to y or x?? There is no y in the problem? that's why i am confused

abbie1
 one year ago
Best ResponseYou've already chosen the best response.0x=13y/7, and then do you want me to solve for x on y=7x13 or that's what y equals?? So you use x to solve for y and y to solve for x??

ohimai
 one year ago
Best ResponseYou've already chosen the best response.0y = f(x).. They are the same thing

abbie1
 one year ago
Best ResponseYou've already chosen the best response.0x and y are the same thing??????

hartnn
 one year ago
Best ResponseYou've already chosen the best response.1i considered f(x) = y for simplicity. i'll write out steps so that you can understand. y= 7x13 y+13 = 7x x = (y+13)/7 now to find inverse function just replace x and y y= (x+13)/7 so your inverse function is \[f^{1}(x)=\dfrac{x+13}{7}\] got this ?

ohimai
 one year ago
Best ResponseYou've already chosen the best response.0f(x) and y are the same thing, so you rewrite it as y = 7x13

ohimai
 one year ago
Best ResponseYou've already chosen the best response.0swop d x for d y.... it becomes x = 7y13

hartnn
 one year ago
Best ResponseYou've already chosen the best response.1can you do same thing for f(x)=x^216. ?

ohimai
 one year ago
Best ResponseYou've already chosen the best response.0after swopping, solve for y

ohimai
 one year ago
Best ResponseYou've already chosen the best response.0yes, but u have to swop d x and d y back... final answer would be y = 4 + sqrt(x)

hartnn
 one year ago
Best ResponseYou've already chosen the best response.1did u simplify like this ? \[\sqrt{16+y}=4+\sqrt y \] no, thats incorrect.

abbie1
 one year ago
Best ResponseYou've already chosen the best response.0sqrt. y+16=x^2 (Root over y+16)

hartnn
 one year ago
Best ResponseYou've already chosen the best response.1yeah, the inverse function will be \[f^{1}(x)=\sqrt{x+16}\] no further simplification possible.
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