Question

Função Exponencial
1) Sendo f(x) = 7", determine:
(a) f(1) =
(b) f(-3) =
(c) f(3) – (2) =
(d) f(4) + f(1)= 2)

Answer 1

f(x) = 7^x

a) f(1)=7^1 = 7

b) f(-3) = 7^-3 = 1/7^3 = 1/343

c) f(3) - f(2) = 7^3 - 7^2 =343 - 49 = 294

d) f(4) + f(1) = 7^4 + 7^1 = 2401 + 7 = 2408