Función inversa f (x) = 7/x - 9

Question

Giana Bradley

Mathematics

25 June, 08:59

Función inversa f (x) = 7/x - 9

+4

Answers (2)

Know the Answer?

Jayda Sloan · Answer 1

F-1 (x) = 7 / (x+9)

Step-by-step explanation:

Change F (x) to y so y=7/x - 9

Swap variables x=7/y - 9

Solve x+9=7/y

7 / (x+9) = y

Then change y to F inverse

F-1 (x) = 7 / (x+9)

Thats ur inverse!

Bria Waters · Answer 2

(x+9) / 7

Step-by-step explanation:

Let f (x) = y;

y = 7/x - 9

y + 9 = 7x

x = (y + 9) / 7

Substitute x for y and X = f^{-1} (x)

f^{-1} (x) = (x+9) / 7 this is the inverse of f (x)