Question

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

Answer 1

it is \[x^2 ?\]

Answer 2

very likely

Answer 3

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 4

@Yahoo!

Answer 5

put y =f(x)

y = x^2 - 25

x^2 = y+25

x = sqrt(y+25)

or

x = -sqrt(y+25)


so

f ^-1 (x) = sqrt(x+25) or -sqrt(x+25)

Answer 6

im lost @Yahoo!

Answer 7

LOL....tell me where u lost

Answer 8

x =sqrt(x+25)

Answer 9

if x^2 = 9 then wat is x?

Answer 10

ooooh i got it now lol thanks

Answer 11

Welcome..:)