1. The problem is to plot points with given $x$ and $y$ coordinates: $x = \{0.4, 0.8, 1.2, 1.6\}$ and $y = \{0.43, 0.59, 0.58, 0.59\}$. 2. Since no explicit function is given, let's consider these points as discrete data points rather than a function. 3. Plotting these points on a graph would show how $y$ changes with $x$ but no continuous function is defined. 4. In Desmos or any calculator, plotting points $(0.4,0.43), (0.8,0.59), (1.2,0.58), (1.6,0.59)$ displays the relation visually.