Question

MEDAL AND FAN! (: Posted below

Answer 1

If \[f(x)=\]\[\sqrt{x+3}\] what is the equation for \[f ^{-1}(x)\]?

Answer 2

For inverses you switch the y and x.

( f(x) is y.)

Answer 3

yeah i know how to do it im just checking my answer because im not sure if i did it right

Answer 4

so this would be \[x=\sqrt{y+3} and then solve for y. \]

Answer 5

i got f^-1(x) = x^2-3 but im not sure is thats correct

Answer 6

you sure are right! :)

Answer 7

Okay thank you! (:

Answer 8

$$\bf
y = \sqrt{x+3}\\
f^{-1} \implies x = \sqrt{y+3}\\
x^2 = y+3 \implies x^2-3 = y
$$

Answer 9

nice job jdoe

Answer 10

can you please tell me how you got the equations that way? @jdoe0001

Answer 11

hmm which way?

Answer 12

like the one you typed.. how'd you get it to show up like that?