Question

seja a funcao f (x)=2* (dois elevado a x). entao f (a+1)-f (a) e igual a:
a) 2
b) 1
c) f (a)
d)f (1)
e) 2f (a)

Answer 1

$\boxed{f(x)=2^x}\\ \\ f(a+1)-f(a)=\\ \\ 2^{a+1}-f(a)=\\ \\ 2.2^a-f(a)=\\ \\ \boxed{2f(a)-f(a)=f(a)} \ \ \ LETRA \ C$