documentclass[12pt,english]{beamer}
usepackage[utf8]{inputenc}
usepackage[T1]{fontenc}
usepackage{tikz,pgfplots}
setbeamertemplate{navigation symbols}{}

begin{document}
begin{frame}[plain]
hspace*{-1.5em}begin{tikzpicture}
begin{axis}[
    domain=0:10,
    axis lines = center,
    height=10cm, width=12cm, grid=major,grid style={dashed, gray!30},
    xmin=0, xmax=12, ymin=0, ymax=9,xtick={1,2,...,11},ytick={1,2,...,10}]
    addplot+[red,only marks,mark=*,mark options={scale=2, fill=red},text mark as node=true] coordinates {
    (1,2)
    (3,1)
    (4,3)
    (5,2)
    (2,3)
    };
    addplot+[red,only marks,mark=*,mark options={scale=2, fill=red},text mark as node=true] coordinates {
    (7,7)
    (8,8)
    (9,5)
    (11,6)
    (10,8)
    };

draw (axis cs:0,0) -- (axis cs:2,2);
filldraw (axis cs:5,5) circle (3pt);
node[anchor=north] at (axis cs:7,6.9) {1};
node[anchor=south] at (axis cs:5,1) {$f(theta_A, x)$};
end{axis}

end{tikzpicture}
end{frame}
end{document}