1. The problem is to plot four discrete points with coordinates given as $x = \{0.4, 0.8, 1.2, 1.6\}$ and $y = \{0.43, 0.59, 0.58, 0.59\}$. 2. Since no continuous function is defined, we consider these as individual pairs: $(0.4,0.43)$, $(0.8,0.59)$, $(1.2,0.58)$, and $(1.6,0.59)$. 3. Plotting these points on a Cartesian coordinate system will show the discrete relationship between $x$ and $y$. 4. This helps us visualize how $y$ varies with $x$ without assuming any particular trend or function. 5. In graphing tools like Desmos, simply inputting these points will display them correctly as scattered points.