Given:
k(x) = -2x + 3
To evaluate the function at k(0), we substitute x = 0 to the given function.
[tex]\begin{gathered} k(x)=-2x+3 \\ \text{Substitute }x=0 \\ k(0)=-2(0)+3 \\ \\ \text{From here, simplify the expression further} \\ k(0)=-2(0)+3 \\ k(0)=0+3 \\ k(0)=3 \end{gathered}[/tex]Therefore, k(0) = 3.