Función inversa f(x) = 7/x -9

(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)

do i do it on a graph?

step-by-step explanation:

answer is because 4×10=40

and 98×4= is 392

40,392