Question

for F(x)=1/4x-5 find (fof^-1) (-7)

Answer 1

confirm this is ur problem please

Answer 2

YES

Answer 3

i think the answer is 7/509

in order to find f'(x) you must change out x for y and solve for y

Answer 4

scratch that - answer is -1/137

Answer 5

F(x) = 1/(4x-5) so
F-1(x) = 4x-5
i tested with x = 1 and they both came out to the same answer

then in f(x) WHEREever you see x plug in 4x-5. plug in -7 and solvee

Answer 6

ok, annd thank youu (: