Question

faça o esboço do gráfico

Answer 1

$\large\boxed{\begin{array}{l}\sf se\,x=-3:~~f(-3)=\bigg(\dfrac{1}{2}\bigg)^{-3}=2^3=8\\\\\sf se\,x=-2:~~f(-2)=\bigg(\dfrac{1}{2}\bigg)^{-2}=2^2=4\\\\\sf se~x=-1:~~f(-1)=\bigg(\dfrac{1}{2}\bigg)^{-1}=2^1=2\\\\\sf se~x=0:~~f(0)=\bigg(\dfrac{1}{2}\bigg)^0=1\\\boxed{\begin{array}{c|c}\sf x&\sf f(x)\\\sf-3&\sf8\\\sf -2&\sf4\\\sf -1&\sf2\\\sf 0&\sf1\end{array}}\end{array}}$