19,21,23,25 easy hope this help you good luck in time
F(x)=2^x+6
let f(x) = n
f^-1(n) = x
x = 2^n + 6
x - 6 = 2^n
2^n = x - 6
log 2^n = log (x-6)
n log 2 = log (x-6)
n = (x-6)/2
f^-1(x) = (x-6)/2
Answer:
Step-by-step explanation:
f of g of x means "function f, replace x by the value of g of x"