Question

Considera la funcion exponencial f(x) = 3^x y calcula :
a) f(2)
b) f(-2)
c) f(1/2)
d) f(- 3/4)

Answer 1

a) $F(2) = 3^{2} = 9$
b) $F(-2) = 3^{-2} = (\frac{1}{3} ) ^{2} = \frac{1}{9}$
c) $F(1/2) = 3^{1/2} = \sqrt{3}$
d) $F(-3/4) = 3^{(-3/4)} = \sqrt[4]{ \frac{1}{27} }$