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anonymous
 one year ago
Find the inverse of the function.
f(x)=3squareroot x/84
i keep getting f−1(x)=512x3+6144x2+24576x+32768
anonymous
 one year ago
Find the inverse of the function. f(x)=3squareroot x/84 i keep getting f−1(x)=512x3+6144x2+24576x+32768

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0when these are the answer choices f1(x) = [8(x + 4)]3 f1(x) = 8(x + 4)3 f1(x) = 8(x3 + 4) f1(x) = 24(x + 4)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Can you draw the function?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Because it's not very clear. :)

Jack1
 one year ago
Best ResponseYou've already chosen the best response.0hi... is this your function? \(\Large f(x)=3 \times \sqrt{ \frac x{84}}\)

Jack1
 one year ago
Best ResponseYou've already chosen the best response.0is it this? \(\Large f(x)=3 \times \sqrt{ \frac x84}\)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0\[f(x)=\sqrt[3]{x/8}4\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Step 1: Change f(x) to y. Step 2: Flip x and y. So y will become x, and x will become y. Step 3: Make the function look like this> y=mx+b

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0dw:1439341791162:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0dw:1439341863512:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Did you understand it or not?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0After that, make the function look like y=mx+b.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Add 4 on both sides. What will you get?dw:1439342093820:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0i was almost positive it was either c or d but now i am very confused

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0then can you show me how you did it?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0lol because i'm trying to hep you but it seems like you're saying that my answer is already wrong :D

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I am not saying that at all I am saying you are right, and i guess i started wrong form the beginning

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0just a quick question: do you know how to add 4 on both sides?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0oh if you don't know, then you can say so. you shouldn't keep people waiting :)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0do you remember this in algebra 1? dw:1439342702568:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0just a quick yes or no is fine

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Wait we are both in FLVS PreCalculus class right? So basically, you just need to add 4 to x, and the 4 in the right side is now removed. dw:1439342854963:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0And then to remove the cube root, you just simply cube it. So from the left side, x+4 will now become \(\huge (x+4)^3\). And the right side will become \(\huge\frac{ y }{ 8 }\).

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0The function will now look like this. Now to remove the 1/8 in y/8, simply multiply it by its reciprocal8on both sides.. dw:1439343067959:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Multiply 8 on both sides. dw:1439343171462:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0From here, what do you think the answer will be? dw:1439343201548:dw

Jack1
 one year ago
Best ResponseYou've already chosen the best response.0if i could double medal u i would, awesome explanation @mathway

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0i second Jack! im starting to completely understand!

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0i have question though, what is the difference between the brackets and the parentheses?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0What do you mean? They are just the same, but not totally. I can't explain it.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I was asking you a question btw @Abbs__ :D look at the drawing above
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