The code below produces this:
\documentclass[dvipdfmx]{article}
\usepackage{tikz,bm}\usetikzlibrary{arrows.meta, angles, quotes}
\begin{document}
\begin{tikzpicture}[>=stealth, x=6mm, y=6mm, thick]
\draw (-5.5,0) -- (5.5,0) node[right] {$\boldsymbol{x}$};
\draw (0,-5.5) -- (0,5.5) node[above] {$\boldsymbol{y}$};
\draw (5,0.1) -- (5,-0.1) node[below] {$\boldsymbol{5}$};
\draw (0.1,5) -- (-0.1,5) node[left] {$\boldsymbol{5}$};
\draw (-5,0.1) -- (-5,-0.1) node[below] {$\boldsymbol{5}$};
\draw (0.1,-5) -- (-0.1,-5) node[left] {$\boldsymbol{5}$};
\draw[-{Stealth[length=3mm]}] (0,0) -- (4,-3);
\node[below] at (2,-1.5) {$\mathbf{A}$};
\draw[dotted] (4,0) -- (4,-3);
\draw[dotted] (0,-3) -- (4,-3);
\node[right] at (4,-2) {$\boldsymbol{-3}$};
\node[below] at (2,-3) {$\boldsymbol{4}$};
\coordinate (a) at (0,0); \coordinate (b) at (1,0); \coordinate (c) at (2,-1.5);
\draw pic[draw, angle radius=0.8cm, "$\boldsymbol{\alpha}$" shift={(0.2,-0.1)}] {angle=c--a--b};
\end{tikzpicture}
\end{document}