Question

Which function below is the inverse of f(x) = x2 − 25?

x squared over 25
±square root of the quantity x plus 25
±5 times the square root of x
1 over quantity x squared minus 25

Answer 1

@jim_thompson5910 @johnweldon1993

Answer 2

if you solve
\[x=y^2-25\] for \(y\) you get the following
\[x=y^2-25\\
x+25=y^2\\
\pm\sqrt{x+25}=y\]

Answer 3

once again the geniuses at FLVS think that
\[f^{-1}(x)=\pm\sqrt{x+25}\] is a function, but if course it is not because of the \(\pm\)

Answer 4

so B

Answer 5

Ya i know

Answer 6

yeah, write to them and tell them that they do not know what a function is

Answer 7

haha i would but i dont wanna get in trouble

Answer 8

give me the id number of this question and i will do it for them
the florida school board should be ashamed