Question

Use the function below to find F(-4).F(x) = 2xO A. -16O B.1161O c.looOD. -8

Answer 1

We need to substitute the value -4 in the place of x, that is

$F(-4)=2^{-4}$

By the law of exponents, this can be rewritten as

$F(-4)=\frac{1}{2^4}$

which gives

$F(-4)=\frac{1}{16}$

which corresponds to option B